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The invention of the toothbrush dated back to 3000 BC when ancient civilizations used chew sticks—twigs with frayed ends—to clean their teeth. The first bristle toothbrush similar to the type used today, was invented in China around 1498, these brushes had bristles made from the stiff hairs of a hog's neck and were attached to handles made of bone or bamboo. In 1780, William Addis from England created the first mass-produced toothbrush by carving a bone handle, drilled holes into it, and inserted boar bristles held in place by wire. The modern toothbrush with nylon bristles was introduced in 1938 by the DuPont company, which replaced the hog hair bristles with more durable nylon fibers. The first electric toothbrush, the Broxodent, was invented in Switzerland in 1954.
Chopsticks, which are smoothed, and frequently tapered, are traditionally made of wood, bamboo, metal, ivory, and ceramics, and in modern days, increasingly available in non-traditional materials such as plastic, stainless steel, and even titanium. Wood and bamboo were the natural early forms of chopsticks, and are still the most common materials today. Chopsticks range from 9.1 inches (23 centimeters) to 10 inches (26 centimeters) long, tapering to one end; very long, large chopsticks, usually about 12 or 16 inches (30 or 40 centimeters), are used for cooking, especially for deep frying foods. Japanese chopsticks are typically shorter than Chinese ones.
Chopsticks are shaped pairs of equal-length sticks that have been used as kitchen and eating utensils in most of East Asia for over three millennia. They are held in the dominant hand, secured by fingers, and wielded as extensions of the hand, to pick up food. Chopsticks were developed about 5,000 years ago in China; by 500 AD, chopsticks had spread to other countries, including Japan, Vietnam and Korea. Thais, Laotians and Cambodians do not commonly use chopsticks. Today, in China, an estimated 45 billion pairs of disposable chopsticks are produced yearly. The most widespread use of disposable chopsticks is in Japan, where around a total of 24 billion pairs are used each year, which is equivalent to almost 200 pairs per person yearly.
A paper cup is a disposable cup made out of paper and often lined or coated with plastic or wax to prevent liquid from leaking out or soaking through the paper; paper cups have been documented in imperial China, where paper was invented by the 2nd century BC.
A coffee cup is a container that coffee and espresso-based drinks are served in; the first patent for a coffee cup lid design was filed in 1967, and focused on creating a tight seal between the cup and the lid to reduce leaking and a vent hole to allow steam to escape.
Sterling silver is an alloy of silver containing 92.5% by mass of silver and 7.5% by mass of other metals, usually copper.
The sterling alloy originated in continental Europe and was being used for commerce as early as the 12th century in Germany.
Since silver tarnishes when exposed to air, it should be stored in treated cloth or lined cabinets, and should not put in a plastic bag with rubber bands.
The first electric blender, which is a kitchen and laboratory appliance used to mix, puree, or emulsify food and other substances, was invented by Stephen J. Poplawski, in 1922.
A mixer, a kitchen appliance intended for mixing, folding, beating, and whipping food ingredients; the first electric standing was invented by Herbert Johnson in 1908.

The first carpet sweeper with revolving brushes which picked up the dust and dirt and deposited it inside the sweeper housing was invented in 1876 by Melville Reuben Bissell (1843 – 1889) Grand Rapids, Michigan
The modern can opener, with a cutting wheel that rolls around the rim, was patented in July 1870 to William Lyman Meriden, Connecticut, and produced by the firm Baumgarten in the 1890s.
The flashlight was patented in August 1903 to Conrad Hubert (1855–1928), a Russian inventor who moved to the U.S. at the age of 35.
The Franklin Stove, which is a metal-lined fireplace was invented in 1741 by Benjamin Franklin (1706–1790)
The light bulb, an electric lamp in which a filament is heated to incandescence by an electric current, was patented in January 1880 to Thomas Alva Edison (1847 - 1931), Milan, Ohio.
Percy Spencer invented the first microwave oven after World War II from radar technology developed during the war. Named the "Radarange", it was first sold in 1947. Raytheon later licensed its patents for a home-use microwave oven that was first introduced by Tappan in 1955, but these units were still too large and expensive for general home use. The countertop microwave oven was first introduced in 1967 by the Amana Corporation, which was acquired in 1965 by Raytheon.
Nutcracker, mechanical device used to crack nuts, typically consisting of two hinged metal levers between which the nut is squeezed, was patented to Henry Marcus Quackenbush (1847- 1933), Herkimer, New York, in 1913.
At the age of 16, Henry Marcus Quackenbush (1847- 1933) invented the extension ladder, which he patented on Oct. 22, 1867, and then began manufacturing them himself, until he sold the patent for $500, a considerable sum at the time.
Chopsticks, which are shaped pairs of equal length sticks that have been used as the traditional utensils of China, Vietnam, Korea and Japan for thousands of years, were developed as early as the 3rd Century BCE in China.
Japanese people consume a tremendous 25 billion sets of wooden chopsticks a year — about 200 pairs per person. Around 97% of these throwaway chopsticks in Japan come from China; Japan produces only 500 million of its own chopsticks, only a sixth of what they produced only 1 or 2 decades ago.
China’s annual production of disposable wooden chopsticks exceeds 45 billion pairs — equivalent to about 25 million trees. The majority of Chinese chopsticks go to Japan and South Korea, with the remainder being used locally.
The first reliable (hand-powered) dishwasher was invented in 1887 by Josephine Cochrane and unveiled at the 1893 Chicago World's Fair.
In 1924 William Howard Livens invented a small dishwasher, which was the first modern dishwasher, and incorporated most of the design elements that feature in the models of today.
In 1679, French physicist Denis Papin, better known for his studies on steam, invented the steam digester in an attempt to reduce the cooking time of food.
Thomas Ahearn (1855 – 1938) was a Canadian inventor and businessman, invented the first electric oven in 1882 and it was put into service in 1892 at the Windsor Hotel of Ottawa.
The range oven/kitchen stove was invented by William Hadawy in 1910.
Percy Spencer invented the first microwave oven after World War II from radar technology developed during the war
In 1798 Count Rumford invented a working iron kitchen stove called the Rumford stove that was designed for very large working kitchens.
Sewing machine, which is an apparatus primarily used in the making of clothing, was patented in 1846 to Elias Howe, an American inventor and sewing machine pioneer
The first refrigerator (fridge) and/or freezer, which is an electrical appliance that uses refrigeration to help preserve food, was invented by Carl von Linde (1842 - 1934) of Germany. He obtained a patent for his refrigerator in Germany in 1877
Refrigerators for home and domestic use were invented by Fred W. Wolf
A smoke detector is a device that senses smoke, typically as an indicator of fire. The first automatic electric fire alarm was invented in 1890 by Francis Robbins Upton; George Andrew Darby patented the first electrical heat detector and smoke detector in 1902 in Birmingham, England
Pesticides are suppose to prevent, destroy, or repel pests they can also be dangerous or hazardous to humans, animals or the environment, but not all pesticides are dangerous or hazardous to humans.
If someone splashes a household chemical in the eyes, rinse out the eyes for 15-20 minutes in the shower or under a faucet, and then call your poison control center at 1-800-222-1222, call 911 or your local emergency ambulance number.
If someone splashes a household chemical on the skin, take off the wet clothing and rinse the skin for 15-20 minutes in the shower or under a faucet, and then call your poison control center at 1-800-222-1222, call 911 or your local emergency ambulance number.
If someone drinks a household chemical, give them half a glass of water to drink, and then call your poison control center at 1-800-222-1222, call 911 or your local emergency ambulance number.
If someone inhaled a poisonous gas, quickly get the person to fresh air; do not breath the fumes yourself, open all the doors and windows wide, and then call your poison control center at 1-800-222-1222, call 911 or your local emergency ambulance number.


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