Many advanced AI tools are available today, each excels in different areas; AI's ChatGPT, Microsoft Copilot, Google Gemini, Jasper, Perplexity.ai, Anthropic’s Claude, Canva, and DeepL are the most notable ones.
Open AI's ChatGPT - ChatGPT can write code, generate text, integrate text, images, and sounds, and even create art.
Microsoft Copilot - Copilot uses GPT-4 to assist with tasks like writing emails, generating code, and creating documents.
Google Gemini - Gemini can integrate deeply with Google’s services.
Jasper - Jasper can generate content, including blog posts, social media updates, and marketing tasks.
Perplexity.ai - Perplexity.ai can provide detailed answers to complex questions.
Anthropic’s Claude - Anthropic’s Claude can engage conversations, making it a good choice for customer service and personal assistants.
Canva - Canva can generate image and provide design suggestions, making it easier to create professional-looking graphics.
DeepL - DeepL can handle nuanced language, making it a favorite for translating documents and text.
Artificial intelligence, or AI, is technology that enables computers and machines to simulate human intelligence and problem-solving capabilities.
It is a rapidly evolving field with significant impacts on various aspects of our lives. For example, AI can be used for creating high-quality, photorealistic images, writing an essay, and solving a problem.
Especially, AI can search and analyze data to enhance decision-making by leveraging vast data to identify patterns and trends often invisible to humans.
The Defense Advanced Research Projects Agency (DARPA), a 220-employee U.S. DoD research and development agency,
not only created ARPANET, the foundation of the current Internet, and Global Positioning System (GPS)
that provides geolocation and time information to a GPS receiver anywhere on or near the Earth, but has also invented many advanced technologies, such as building a vertical takeoff and landing (VTOL) plane; making a robot that would converse long distances without
requiring a need to refuel or recharge; building cheaper and lightweight drones that can be launched from a mother ship; fabricating and flying a reusable aircraft to the edge of space; inventing an unmanned oblique-wing flying aircraft for high speed,
long range and long endurance flight; developing autonomous, large-size, unmanned underwater vehicles (UUVs) capable of long-duration missions and having large payload capacities; and using AI to identify and fix software vulnerabilities.
Quantum computers and supercomputers are powerful machines used to perform complex calculations, solve problems, and analyze data but they differ
in their underlying technology and applications. Supercomputers consist of thousands or hundreds of thousands of central processing units (CPUs) working together to perform incredibly complex calculations and simulations that could never be achieved by humans or any computers.
Quantum computers use quantum bits (qubits) instead of binary bits to store and process information to perform many calculations at once for tackling complex problems that require massive amounts of data to be processed quickly.
Semiconductors, or microchips, are an essential component of electronic devices such as computers, printers, cars and mobile phones. They are
materials that have a conductivity between conductors (generally metals) and insulators (nonconductors, e.g., most ceramics).
Semiconductors can be pure elements, such as silicon or germanium, or compounds such as gallium arsenide or cadmium selenide; in a doping process, small amounts of impurities are added to pure semiconductors causing large changes in the conductivity of
the material.
German physicist Thomas Johann Seebeck was the first person to notice a semiconducting effect, in 1821, he discovered that when two wires made from dissimilar metals are joined at two ends to form a loop (known as a thermocouple),
and if the two junctions are maintained at different temperatures, a voltage develops in the circuit; later, in 1823, Ørsted called this phenomenon thermoelectric effect.
In 1834, Jean Peltier, a French physicist, discovered another
second thermoelectric effect that when a current flows through a circuit containing a junction of two dissimilar metals, heat is either absorbed or liberated at the junction. Their efforts contributed to the semiconductor development.
Pi=3.1415926 is equivalent to "May I have a large container of coffee" when replacing each number by word's letter on a phone key board.
Take any three figure number in which the first figure is larger than the last, say 754. Reverse it, making 457 and subtract the smaller from the larger (i.e.; 754-457), making
297. Now add the result to the same number reversed, 792. The answer is (297+ 792) = 1089, and will be 1089 whatever number you start with.
111,111,111 x 111,111,111 = 12,345,678,987,654,321
1 x 9 x 12345679 = 111,111,111; 2 x 9 x 12345679 = 222,222,222; 3 x 9 x 12345679 = 333,333,333; 4 x 9 x 12345679 = 444,444,444; 5 x 9 x 12345679 = 555,555,555
6 x 9 x 12345679 = 666,666,666; 7 x 9 x 12345679 = 777,777,777; 8 x 9 x 12345679 = 888,888,888; 9 x 9 x 12345679 = 999,999,999
2,520 can be divided by 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 without having a fractional leftover.
2014 - Stephen Hawking: 'There are no black holes', 'There is no escape from a black hole in classical theory, but quantum theory enables energy and information to escape'. Event horizon replaced by apparent
horizon that allows some light through, and kills firewall.
2012 - Firewall paradox - Escaping information ignites firewall, which cannot be reconciled with general relativity.
2004 - Stephen Hawking accepted that information escapes from black holes; Swift gamma-ray burst mission launched.
2000 - Scientist discovered that the evolution of supermassive black holes in the hearts of galaxies appears to be linked to the evolution of the galaxies themselves.
1994 - Hubble Space Telescope provided evidence that super-massive black holes reside in the center of galaxies.
1989 - Russian Space Agency launches Granat, using gamma-ray technology for deep imaging of galactic centers.
1974 - Using quantum mechanics Stephen Hawking showed that black holes may not be black after all; they may emit a form of radiation.
1971 - By combining X-ray, radio, and optical observations from telescopes scientists confirmed black hole candidate Cygnus X-1 by determining the mass of its companion star.
1970 - Stephen Hawking defined modern theory of black holes.
1967 - Scientists discover first good black hole candidate, Cygnus X-1.
1964 - John Wheeler brought the concept of "collapsed stars" to the forefront by coining a new name for them: black holes
1963 - Roy Kerr developed "black hole" equations showing that massive stars will ‘drag’ the spacetime around them like water swirling around a drain. Maarten Schmidt discovered that 3c273, an odd star-like point of light known as a quasar, is one of the most powerful objects in the universe.
1939 - Robert Oppenheimer and Hartland Snyder mathematically proved Schwarzschild’s theories.
1931 - Subrahmanyan Chandrasekhar defied conventional wisdom by showing that 'heavy' stars would end their lives in a more exotic state than stars like the Sun.
1916 - Before Albert Einstein could solve the equations in his own theory of gravity, Karl Schwarzschild defined a black hole and what later becomes known as the Schwarzschild radius.
Black holes emerged from general relativity; nothing, not even light, escapes event horizon
1915 - Albert Einstein expanded his theory of relativity to include the effects of gravity, and published the General Theory of Relativity describing the curvature of space-time
1796 - Simon Pierre LaPlace predicted the existence of black holes 1895 Wilhelm Roentgen discovers X-rays; he discovered the concept of 'dark stars' independent of Michell's 'dark stars".
1783 - John Michell theorized the possibility of an object large enough to have an escape velocity greater than the speed of light; he suggested that the surface gravity of some stars could be so strong that not even light could escape from them.
1686 - Sir Isaac Newton published his universal law of gravitation in a three-volume work known as the Principia.
The US tech economy was $1.6 trillion in 2018, 9.2 percent of gross domestic product (GDP). The
numbers are even more staggering from an equities perspective; the American tech industry accounts for a quarter of the value of the US stock market, some $34 trillion. There are half a million tech
companies in the US with 34,000 new startups in 2017 alone. Globally, the tech industry topped $4.5 trillion in revenue in 2017 and is expected to reach $4.8 trillion in 2018. The US is the single-largest
tech market in the world and accounts for 31 percent of the global tech market.
Massachusetts Institute of Technology scientists predicted the devastating effect climate change will have on the densely-populated region of China, which stretches the length of the Yellow River.
Deadly heatwaves that can kill people in six hours could leave the north China plain, a large area of China, uninhabitable by 2070 unless the country reduces its greenhouse gas emissions.
The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and
Arthur Leonard Schawlow; Gordon Gould, an American physicist, is also credited with the invention of the laser. Lasers are used in optical disk drives, laser printers, barcode scanners, DNA sequencing instruments, fiber-optic communication,
laser surgery and skin treatments, cutting and welding materials, devices for marking targets and measuring range and speed; and laser lighting displays in entertainment.
John Bertrand Gurdon, an English developmental biologist, while working at the University of Oxford, successfully cloned a frog using intact nuclei from the somatic cells of a Xenopus tadpole;
his experiments led to the development of tools and techniques for nuclear transfer and cloning widely used today.
Charles Richard Drew, an African-American physician, while researching in the field of blood transfusions,
developed improved techniques for blood storage, which led to the establishment of the American Red Cross blood banks early in World War II.
Alec John Jeffreys, a British geneticist, discovered a method of showing variations between individuals' DNA, and developed
genetic fingerprinting
while working in the Department of Genetics at the University of Leicester; his invention is now used worldwide in forensic science to assist police detective work and to resolve paternity and immigration issues.
For each degree higher or lower the thermostat is set for air conditioning or heating, the consumer can save 3% on such costs.
Fred Terman is considered as the fayrer of Silicon Valley. When Terman was dean of the School of Engineering at
Stanford University, he was successful in attracting research support from a number of sources. He encouraged his graduates to start their own companies and faculty members to join as consultants and investors, and, in some instances, founding new companies in Silicon Valley.
Luis von Ahn, Manuel Blum, Nicholas J. Hopper (all of Carnegie Mellon University), and John Langford (of IBM)
developed and publicized the notion of a CAPTCHA, which is is a type of challenge-response test used in computing to determine whether or not the user is human.
CAPTCHA requires a user to type the letters of a distorted image or digits that appears on the screen, search bots can not read these and so access control is established. The first CAPTCHAs are widely used to verify users who try to access a secure website.
The prototype V164–8.0 MW wind turbine located in the Danish National Test Centre is the world’s largest and most powerful wind turbine, which is 720 feet tall, has 260-foot blades, and can generate 8 megawatts of power — enough to supply electricity for 7,500 average European households or about 3,000 American households.
Britain has the most installed offshore wind capacity with 3.68 gigawatts while Denmark is a distant second with 1.27 gigawatts.
Nikola Tesla (1856 – 1943) was granted patents for a "system of transmitting electrical energy" and "an electrical transmitter", which were the ones of around 300 patents worldwide for his inventions.
Sunlight takes a little more than 8 minutes to reach the Earth; this means that when we are looking at the sun as it as 8 minutes ago.
Compared with our own Moon, which is about the same size, the Mercury planet reflects much less light.
There's a lot more carbon dust thrown off from comets close to the Sun, where Mercury orbits -- about 50 times as much for Mercury as for our moon.
Mercury, the first and smallest planet in the Solar System, speeds around the Sun in 88 Earth days, but takes almost 176 Earth days to go from sunrise to sunset.
The temperatures during the day on Mercury can be 840° F; at night, the temperatures plummet to -300° F.
Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.
It has almost the Earth size, and is covered in thick clouds that are made mostly of carbon dioxide and acid. The surface temperature can be as high as 930° F, caused mostly by the clouds that trap the heat and reflect it back.
One day on Venus is 243 Earth days, and its year is 225 Earth years.
Earth is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four
terrestrial planets, and the only astronomical object known to accommodate life.
Formed about 4.6 billion years ago, the Earth speeds around the Sun in 365 Earth days. The average temperatures on Earth is around 59° F.
Mars is the fourth planet from the Sun and the second smallest planet in the Solar System.
It is a “Red Planet” and the closest planet to Earth, has polar ice caps, suggesting the water is on Mars. Temperatures on Mars during the day are about 80° F, but at night drop to -270° F.
Jupiter is the fifth planet from the Sun and the largest planet in the Solar System.
It has no surface because it is made mostly of gasses. The average temperature on Jupiter is -235° F. Jupiter has a day that lasts 9.9 Earth hours and a year that lasts 11.9 Earth years.
Saturn is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter.
It is a gas giant planet with no surface to walk on. The average temperature on Saturn is -218° F. One day on Saturn is 10 Earth hours and one year is 29.46 Earth years.
Uranus, has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. It is
a gas giant with no surface to walk on, and is a unique planet with its blue-green color caused by the methane gas that reflects back blue and green light. Only one pole of Uranus faces the Sun, while the other is in complete darkness. One side of Uranus gets 42 years of light, followed by 42 years of darkness.
Uranus has a temperature of -323° F. The average day on Uranus is 17.9 Earth hours and a year is 84 Earth years.
Neptune, which is the eighth and farthest planet from the Sun in the Solar System, has many dwarf planets (i.e.; it isn’t large enough to be considered a planet).
On this planet the winds blow over 1,200 miles per hour and the temperature is -350° F. One day on Neptune is equal to 19 Earth hours and one year is equal to 164.8 Earth years.
The diameters of the Sun, the Earth and the Moon are 870,000 miles (1,391,000 kilometers), 7,926 miles (12,756 kilometers) and 2,173 miles (3,477 kilometers, respectively.
On January 27, 1926, John Logie Baird, a Scottish inventor, gives the first public demonstration of a true television system in London, launching a revolution in communication and entertainment.
27 Science fictions that became Science Facts in 2012: Quadriplegic Uses Her Mind to Control Her Robotic Arm; Stem Cells Could Extend Human Life by
over 100 Years; Self-Driving Cars; Eye Implants Give Sight to the Blind; First Unmanned Commercial Space Flight Docks with the ISS; Human Brain Is Hacked; First Planet with Four Suns Discovered;...
Temperature in degrees Fahrenheit = (Temperature in degrees Celsius x 1.8) + 32; Temperature in degrees Celsius = (Temperature in degrees Fahrenheit - 32) x (5 / 9); Fahrenheit and Celsius are equal at -40 degrees.
Nuclear power, which uses fission to create heat and electricity, provides around 14% of the world’s electricity.
Nitrogen, which a colorless, odorless and tasteless gas, makes up around 78% of the air you breathe.
The hottest planet in the solar system is Venus, with an estimated surface temperature of 864 degrees F (462 degrees C).
The temperature on the surface of Mercury exceeds 806 degrees F (430 degrees C) during the day, and, at night, plummets to minus 356 degrees F (minus 180 degrees C).
The temperature at the center of the Earth is around 5,500 degrees Celsius.
The Hubble Space Telescope weighs 12 tons (10,896 kilograms), is 43 feet (13.1 meters) long, and cost $2.1 billion to originally build.
Sound travels about 4 times faster in water than in air.
The Saturn has a density lower than water. So, if placed in water it would float.
The Jupiter is larger than the Earth around 1,000 times. Europa, Jupiter’s moon, is completely covered in ice.
Electricity travels at the speed of light more than 186,000 miles per second!.
The Earth orbits the Sun at 66,700mph. The Moon is moving away from the Earth at about 34cm per year.
There are over 100 billion galaxies in the universe. The largest galaxies contain nearly 400 billion stars.
The Sun, composed mostly of helium and hydrogen, has a surface temperature of 6,000 degrees Celsius.
Sahara (around 93,500,000 square miles) is the largest desert in the world.
Lake Baikal (Baikal) in Siberia, Russia is the deepest lake (1,620m deep) and the oldest lake (25 million years old) in the world.
The highest waterfall (979m) in the world is the Angel Falls in Venezuela.
The deepest part of the ocean is 35,813 feet (10,916 meters) deep and occurs in the Mariana Trench in the Pacific Ocean. At that depth the pressure is 18,000 pounds (9172 kilograms) per square inch.
Memory, speed, flexibility, problem solving, and attention are five major critical elements of brain health and performance used to measure IQ.
Bifocals are eyeglasses with two distinct optical powers. Benjamin Franklin (1706 - 1790) is credited with the invention of original bifocal spectacle lenses in 1784.
As of 2011, nuclear power plants provide about 6% of the world's energy and 13–14% of the world's electricity.
There were 439 nuclear power reactors in operation in the world, operating in 31 countries. The U.S. had 104, France: 58, Japan: 55, Russia: 32,
South Korea: 21, India: 20, U.K: 19, Canada: 18 and Germany: 17. The working life of a nuclear power plant is approximately 40 years.
Charles Edward Taylor (May 24, 1868 – January 30, 1956) built the first aircraft engine that provided the power to achieve the powered, sustained, and controlled flight of an airplane flying by Orville and Wilbur Wright on December 17, 1903.
In 1976, a magnitude 7.5 quake killed 255,000 people in Tangshan, China; in 2004, a 9.1 magnitude quake in Sumatra (and the resulting Tsunami) killed 227,898 in 14 countries; in 1920, a 7.8 earthquake killed 235,502 people in Haiyuan, China;
in 1923, 142,000 people died after a 7.9 quake in Kanto, Japan; in 1908, 123,000 people were killed after a 7.1 quake in Messina, Italy; and in 1948, 110,000 people died after a 7.3 quake struck Ashgabat, Turkmenistan.
About 46,000 square miles of arable land and around 1,000 square miles of Chinese land turn to desert annually due to climate change, fueling deadly, globe-circling dust storms, and practices such as forest clear-cutting.
Atacama Desert in Chile is an extreme desert state, where no rain has ever been recorded in this region.
When an active cell phone is pressed against the ear, the brain gets busier. The human brain is sensitive to the electromagnetic radiation that is emitted from cell phones;
however, the radiation emitted by a cell phone is not radioactive. Scientists don't know yet whether cell phones are bad for the brain.
Discovery, which made its debut on August 30, 1984, ended its career on March 9, 2011 as
the world's most flown spaceship, returning from orbit for the last time and taking off in a new direction as a museum piece. This spaceship flew 39 missions, including flying 13 times to the space station more than any other craft,
covering 148 million miles. It orbited Earth 5,830 times and spent 365 days in space.
About 10.4 percent of the world's land surface (or 6,020,000 square miles) is covered with ice in the form of ice sheets, ice caps,
or glaciers.
The ice that covers Antarctica is 15,700 feet ( 4,785 meters) in depth at its thickest point. Its average thickness is 7,100 feet (2,164 meters).
Of the 850 different species of tree in the U.S., the oldest species is the bristlecone pine (Pinus longaeva), which grows in the deserts of
Nevada and South California. The potential life span of these pines is estimated to be 5,500 years.
An old, still healthy oak tree is estimated to have approximately 250,000 leaves.
The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket.
Supercomputers, which was
originally designed by Seymour Cray at Control Data Corporation (CDC) in 1960s, are used for highly calculation-intensive tasks
such as problems involving weather forecasting, climate research, molecular modeling and physical simulations and quantum physics. Today
the Tianhe-1A supercomputer located in China has been the fastest in the world.
The highest recorded train speed is 320.2 mph by the TGV train in France.
Only 31 percent of U.S. bachelor's degrees are in science and technology, compared with 63 percent in Japan.
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
She was the first person honored with two Nobel Prizes (in physics and chemistry), and was the first woman to serve as professor at the University of Paris.
The water on the earth occupies 71 percent of the planet, but only 1 percent of this water is drinkable.
It takes 8 minutes and 12 seconds for sunlight to reach the Earth.
Florida's beaches lose 20 million cubic yards of sand annually.
One 75-watt bulb gives more light than three 25-watt bulbs.
The speed of a typical raindrop is 17 miles per hour.
Radio waves travel at 186,000 miles per second, and sound waves saunter at 700 miles per hour.
HP,
Dell, Acer and
Apple are top PC sellers in the U.S.; and while other three vendors gained their shares, HP continues falling.
The revolver was invented by inventor Samuel Colt. It was patented in 1836.
eBay acquired Skype for approximately $2.6 billion on September 12, 2005. Skype had about 54 million members in 225 countries and territories and added around 150,000 new users each day at that time.
Linus Benedict Torvalds is the creator and, for a long time, principal developer, of the Linux kernel; which became the kernel for operating systems such as the Linux operating system,
Android, and Chrome OS. While attending the University of Helsinki, Linus Torvalds released Linux,
(a UNIX like operating system (OS) based on POSIX which is distributed with free source code), version 0.02 on October 5, 1991.
Leonardo da Vinci - The science discovery in the drawings of Leonardo da Vinci, and more...
Mad Science Network - A collective cranium of scientists providing answers to science questions.
Manhattan Project - A research and development program, led by the United States with participation from the United Kingdom and Canada, that produced the first atomic bomb during World War II.
MIT - Invent - The Lemelson-MIT Program celebrates those inventors who have turned their ideas into accomplishments.
Famous People - People have made significant contributions to energy and science.
National Inventors Hall of Fame - The National Inventors Hall of Fame honors the women and men responsible for the great technological advances that make human, social and economic progress possible...
Understanding of Things-- Time makes sense in small pieces. But when looking at huge stretches of time, it's almost impossible to wrap our head around things. The site provides videos to put things in perspective with some infographics!
Physics World-- Features news, views and information for the global physics community from Institute of Physics Publishing...
Popular Science-- A science magazine featuring up-to-the-minute news, gadget reviews, insightful commentary, and more.
Popular Mechanics-- A service magazine covering a variety of information on home improvement, automotive needs, electronics, computers...
Chemistry: Periodic Table-- Web Elements aims to be a high quality source of chemistry information relating to
the periodic table. Coverage is such that professional scientists and students at school interested in chemistry
and other sciences will all find something useful.
CISTI - Canada Institute for Scientific and Technical Information-- One of the world's major sources for information in all areas of science, technology,
engineering and medicine, CISTI began over 75 years ago as the library of the National Research Council of
Canada, the leading agency for R&D in Canada, and became the National
Science Library in 1957.
George Mason University Echo’s Research Center-- Echo’s research center catalogues, annotates, and reviews sites on the history of technology, industry, and science.
It incorporates the WWW Virtual Library for the History of Science, Technology, Medicine, and Industry -
an index of more than 5,000 websites, many with excerpts and annotations.
Institute of Electrical and Electronics Engineers (IEEE) -- A non-profit global membership organization, IEEE is the world's leading professional association for the advancement
of technology. Its interest areas ranges from aerospace systems, computers and telecommunications to biomedical engineering,
electric power and consumer electronics among others.
The History of Computing Project -- Providing a repository where the knowledge of computing, past, contemporary and future, is and will be preserved, such as
information on IT hardware/software and electronics among others.
Infomine -- A virtual library of Internet resources. It contains useful Internet resources
such as databases, electronic journals, electronic books, bulletin boards,
mailing lists, online library card catalogs, articles, directories of
researchers, and many other types of information.
Institute of Physics-- The Institute of Physics, a leading communicator of physics, promotes interest and
participation in physics across society. Its publishing company, IOP Publishing, is a world leader in scientific
publishing and the electronic dissemination of physics.
IPL - The First Internet Library ...-- Are you trying to replace traditional libraries? - No, no, no! Far from it.
What we are trying to do is explore what the rich history and intellectual traditions of librarianship have
to offer the dynamic but, ...why not try to find out what we can do with digital media?
The International Mathematical Olympiad (IMO)-- is the World Championship Mathematics Competition for High School students and is held
annually in a different country. The first IMO was held in 1959 in Romania, with 7 countries participating.
It has gradually expanded to over 90 countries from 5 continents.
Naked Scientists-- The Naked Scientists are a group of doctors and scientists who enjoy
communicating science to the general public via radio shows. This website contains archived editions of
the previous
shows in text and streamed audio formats, science articles by scientists from various fields,
a lively science discussion forum, and reviews of the latest science books to hit the stores.
National Science Foundation -
. -- The National Science Foundation (NSF) promotes the progress of science to advance the national health, prosperity, and welfare, and secure the national defense…
The NSF also provides the results of surveys and reports related to statistics on the sciences in the U.S.
Nobel -- On November 27, 1895, Alfred Nobel signed his last will in Paris,
briefly outlining his vision of five prizes for those who during the past year have done humanity the greatest service.
Nobel Channel
-- A very informative web site that brings to life those that have won
the Nobel Prize with movies and audio of speeches.
Nobel Prize Internet Archive
-- An impressive site that collects information about all of the past Nobel Laureates,
organized by prize and year, brief biographical information and links.
PSIGate -- An informative site that provides free online resources for students, researchers and practitioners in the
physical sciences, including astronomy, chemistry, earth sciences, physics, and science history and policy.
Royal Society of Chemistry -- is the largest organization in Europe for advancing the chemical sciences. It is
for everyone interested in the chemical sciences - with events, features, links, educational materials plus
the ever-popular Visual Elements Periodic Table and Timeline.
SciCentral-- As the scientific Internet matured, online research
news channels became more organized and powerful new sources arose
that provided timely, extensive, and reliable information. Since the
emergence of a strong, coherent, and organized scientific Internet had
always been the anticipation of SciCentral.
SciELO -- The Scientific Electronic Library Online - SciELO is an electronic
library covering a selected collection of Brazilian scientific journals. The library
provides full access to a collection of serial titles, a collection of issues from individual
serial titles, as well as to the full text of articles.
Scientific American-- Scientific American, the oldest continuously published magazine
in the U.S., has been bringing its readers unique insights about developments in
science and technology for more than 150 years.
Scorecard -- Find out about the pollution problems in your community. See which geographic
areas and companies have the worst pollution records. Identify which racial/ethnic and income groups
bear more than their share of environmental burdens.
Visible Earth -- A catalog of NASA images and animations of our home planets. These images produced
by the SeaWiFS, QuickBird, and IKONOS instruments and managed
by NASA.
Whatis.com -- A place for "Fast Reference" and learning tools - whatis.com is a knowledge exploration and
self-education tool about information technology, especially about the Internet and computers. It contains over
4,500 individual encyclopedic definition/topics...
VTIC'97 -- The Second Annual Vietnamese Association for Computing, Engineering, Technology and Sciences (VACETS) International Technical Conference is part of its on-going
efforts to create an opportunity for overseas Vietnamese scientific and technical professionals to meet,
exchange knowledge, and share their achievements.
Sammsung Galaxy S9 - The design, display, and specs of the S9 bring zero surprises, but they are the things that influence your day-to-day use of the phone more than anything else.
Apple iPhone X - The iPhone 8 Plus is a great phone with a great blend of handheld comfort and a big, gorgeous OLED screen. Rear telephoto camera outshoots the 8 Plus in low light, and the front camera snaps impressive portrait selfies.
Apple iPhone 8 Plus - The iPhone 8 Plus is a great phone with a spectacular camera that offers a lot of what iPhone X has under the hood, but in a lot less exciting body.
Apple iPhone 8 - The iPhone 8 offers wireless charging, lightning-fast performance and small but solid upgrades to its camera, screen and speakers. Its starting storage size is a roomy 64GB, double that of the iPhone 7.
iPhone 7 and iPhone 7 Plus - The iPhone 7's overall design is similar to the iPhone 6S, but introduces new color options, water and dust resistance, a new capacitive, static home button, and removes the 3.5 mm headphone jack. .
iPhone 6s Plus - A touch screen-based smart phone developed by Apple. Fantastic 5.5-inch screen, superb battery life, great camera with OIS,
excellent gaming performance.
iPhone 6s - Apple's done what we all expected - finely balanced its latest phone. 3D Touch is a genuine innovation, and the phone works fluidly at nearly every task - but it's very similar to 2014's model.
iPhone 6 Plus - The touch screen-based iPhone 6 is an exceptional phone. It's thin, fast, and features the excellent iOS operating system.
The big battery provides long life, and the 5.5-inch screen is not only big but bright and high-contrast. Optical image stabilization improves low-light photography..
iPhone 6 - The touch screen-based iPhone 6 is an exceptional phone in nearly every way except its average battery life:
it's thin, fast, and features the excellent iOS operating system. It was the best overall phone introduced in 2014.
Apple Watch - Apple Watch is often oversimplified as a mini iPhone that enables user
to read emails, summon Siri and make and receive phone calls from their wrist.
Nintendo Wii U - Is the first Nintendo console to support high-definition graphics, capable of producing video output up to 1080p.
The Wii U's primary controller is the Wii U GamePad, which features an embedded touch screen that is used to supplement the main gameplay shown on the television. It also contains a web browser which allows users to browse the web on the Wii U GamePad or on the television screen.
Roku 2 XS - A small 1080p HD streaming-media-to-TV box that offers streaming-video and-audio services, such as Netflix, Hulu Plus, Amazon Instant Video, HBO Go, Vudu, Pandora, Mog, and Rdio
- plus motion-based gaming for an extra dose of entertainment.
Sony Cyber-shot RX100 - An enthusiast compact digital camera, 20.2 megapixel, 1" CMOS sensor, featuring, 20.2 megapixel, full HD video recording, and a Zeiss-branded 28-100mm equivalent F1.8-4.9 stabilized lens featuring Zeiss T coatings to minimize internal reflection.
Apple TV G3 - A small set-top box. Once connected to a TV using a HDMI cable and to a broadband router either wirelessly or via an Ethernet cable, it lets user rent a wide variety of TV shows
Raspberry Pi Model B - Is a credit card-sized, Linux-based computer powered from a single microUSB socket, featuring a 700MHz ARM processor, 512MB RAM, SD card slot , Ethernet port, two USB 2.0 ports, HDMI output, and more.
Lytro - A camera lets user capture, share and see in a whole new way. It’s the first consumer camera that records the entire light field — all the rays of light traveling in every direction through a scene
Apple 15” MacBook Pro with Retina Display - A powerful Apple MacBook featuring 2.3GHz and 2.6GHz quad-core Intel Core i7 processors with 6MB of shared L3 cache and Turbo Boost speeds up to 3.6GHz.
Apple iMac 27" 2012 Edition - A powerful Apple iMac featuring a 2560x1440 and 1080p LED-backlit display, a 3.2GHz quad-core Intel Core i5 processor, 1TB of storage.
Dell XPS One 27 - A powerful Dell PC featuring a 2560x1440 native resolution, a Core i7-3770S, an Nvidia GeForce GT640M, and 8GB of DDR3/1600.
Microsoft Surface with Windows RT - The first Surface tablet comes with 64GB of storage, a 10.6-inch, five-point multi-touch screen, a innovative keyboard, Microsoft's Windows RT operating system, and a full copy of Microsoft Office 2013.
Google Nexus 4 - The Nexus 4 cell phone — a collaboration of Google and LG, represents the pinnacle of Android hardware and software featuring a 1280-by-768 4.7-inch display, 2GB of RAM, Google map, Google Play,
a high-performance 8MP camera, HD video in full 1080p.
Samsung Galaxy S III GT-I9300 - The Galaxy S III comes with a 4.8-inch super Amoled screen with a resolution of 1280-by-720 pixels. It has some new features, such as Smart Stay, (eyes tracking), Direct Call (call number by directing it to the face).
Samsung Galaxy Note II - An Android smart phone marketed by Samsung comes with a large 720p resolution display, 5.55-inch (141 mm) measured diagonally, a 1.6 GHz quad-core processor, 2 GB of RAM, and storage capacity up to 128 GB,
and software optimized for an integral self-storing stylus.
Nest Learning Thermostat 2nd Generation- The device remembers what temperatures you like, turns itself down when you're away, and can be controlled over Wi-Fi from your iPhone, iPad, iPod touch, or Mac. Nest's Energy History shows you when your system was on and why, the Nest Leaf tells you
when you’re saving energy, and the monthly Energy Report shows you trends in your energy use and tips to save more.
Western Digital WD TV Live Hub - A consumer media player that enables user to play videos, music, and photos on TV in brilliant high-definition by putting this personal media on the high-capacity built-in hard drive and stream it to any screen in the house.
Audioengine 5+ (A5+) Premium Powered Speakers - Delivers audiophile-quality sound and features at a price that continues to set the standard for affordable high-quality audio. Connect any iDevice, computer, TV, or any other audio
component for great stereo sound in any room. Built-in power amplifiers save space and eliminate the need to connect Audioengine 5+ to a stereo receiver or external power amp. Simply plug the left speaker into an AC outlet and connect the included speaker wire from the left to right speaker..
Simple.TV - A personal DVR device that offers streaming-video and-audio services from the-air HD broadcasts and unencrypted cable TV, in either live or recorded form to iPad, PC, Mac or Roku box.
Apple's Second-Gen Tablet iPad 2 - iPad2 features a dual-core processor, a better screen, more RAM and storage, and a camera. It runs on both GSM and CDMA networks.
Apple iPad 2 (Tablet) - At 8.8 mm, the iPad 2 is thinner, lighter (down from 1.5 lbs to 1.3 lbs) and faster than its predecessor. No improvements were made in the iPad 2's battery capacity, which still hovers at around ten hours. iPad 2 has around 500,000 applications in the market.
Samsung Galaxy 10.1 and 10.1v - The tablet features a large, wide-screen, sharp and bright display, weighs l1.25- 1.32 lbs,
a dual-core 1GHz processor, 1 GB RAM, and Android 3.1 Honeycomb. The Galaxy Tab's alleged infringements of input gestures, such as 'pinching' which were innovated by Apple, have resulted in injunctions being granted preventing its sales in Australia.
Amazon Kindle Fire - The Kindle Fire is a 7-inch tablet that has a sharp, bright, hi-res screen, and a small storage with an affordable price. There are around 10,000 applications for Amazon's Kindle Fire.
Barnes & Noble Nook Table - The Nook tablet features a 7-inch, touch-sensitive with an extended battery life up to 11.5 hours of reading, or 9 hours of video, a faster processor and more memory for software operations (i.e.; faster Web
browsing and magazine page-flipping when comparing with Amazon's Kindle Fire). There are around 1,000 applications for the Nook tablet.
Nikon D300s (Digital Camera) - Nikon D300s is the first
digital camera that includes high-definition video capture with high quality built-in microphone, takes excellent photos and provides video output containing impressively smooth images.
Canon PowerShot SX200 IS (Digital Camera) - The camera creates gorgeous image quality and point-and-shoot convenience
of Smart Auto, along with enhanced operability and an intuitive new menu. It provides wide-angle shots with stunning 12x optical zoom, HD shooting at 1280 x 720 pixels with HDMI output lets you see all the beauty of your HD images and movies on your HDTV.
Dell Latitude Z (Laptop) - Dell Latitude Z is the world's thinnest, lightest 16" laptop
(a 16-inch screen, 0.57 inch thick, about 4.5 pounds with the standard 4-cell battery), featuring a premium design and innovative wireless and touch-sensor technology.
PlayStation- PlayStation 3is a popular graphical game conslole produced by Sony, with a cutting-edge Cell processor and a customized Nvidia graphics chip that could melt most gaming PCs.
The PlayStation 3 is currently behind its competitor systems, the Wii and the Xbox 360, in total worldwide sales.
Xbox 360 - The Xbox 360 is the second video game console produced by Microsoft, and was developed in cooperation with IBM,
AMD, and SiS. The integrated Xbox Live service allows players to compete online and download content from TV shows and movies.
Pioneer Kuro HDTV Plasma TV - Pioneer Plasma TV offers a perfect picture quality. It’s a world built on uncompromising attention to detail in an extraordinary, beautiful new way with deep, intense blacks for unmatched contrast.
iPhone - The Apple iPhone, which uses the GSM standard, has a stunning display, a sleek design, and an innovative multitouch user interface. The iPhone's functions include those of a camera phone, text messages, visual voicemail, and a portable media player ("iPod"). It also offers Internet services
including e-mail, web browsing, and local Wi-Fi connectivity.
LG BH-100 Super Blu-ray- The Blu-ray Player BH-100 is essentially a Blu-ray Disc Player that can also play HD-DVDs with up–convert to 1080i via HDMI output.
Combine it with a compatible 1080p HDTV and your senses will be enthralled by the ultimate in sound and picture quality.
iPod - The Apple iPod nano media player was introduced on September 7, 2005. It's the first Nano to play back video displayed on a colorful, 2-inch screen wih a combination of features of both the
iPod shuffle and iPod classic.
Vudu - Vudu delivers instant access to HD films, TV shows, and approximately 5,000 movies, from blockbusters to independent films, with more added every week. This set-top box gives you instant access
to thousands of movies--including brand-new DVD releases--for $1 to $4 for rental or $5 to $20 to buy.
Nintendo Wii - Nintendo Wii is a successor to the Nintendo GameCube targeted a broader demographic than that of Microsoft's Xbox 360 and Sony's PlayStation 3. Since its November 2006 release, the Wii
has become a runaway hit, so popular that it remains difficult to find it in stock.
Nintendo DSi - Nintendo DSi, the third iteration of
the Nintendo DS handheld, is about 12% thinner and with a larger screen (17%) than the Nintendo DS Lite. It has a CPU that is twice as fast as the one in the DS and DS Lite,
256 MB of internal flash memory, and digital cameras (16MB). The DSi was first released in Japan on November 1, 2008, and it is expected to be released in the US in Spring 2009.
Microsoft Zune MP3 Player - The Zune 120GB MP3, with a unique
focus on music discovery, is a fierce competitor to the iPod Classic. It has great Wi-Fi and social music-discovery features supported for games and audio-books with friendly interface, good navigation control, high audio quality, audio-and
video-podcast support, superlative FM radio, wireless syncing, and a built-in composite-video output.
Onkyo TX-SR875 A/V Receiver - Exceeding even the highest expectations, the TX-SR875 A/V surround sound receiver deserves all the accolades it gets.The foundations of the TX-SR875 are its isolated power amplifier block
(which supports a dual push-pull amplification design) and preamplifier.
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