1900s One of the first cars ford came out with was the Model T. The EKG (Electrocardiograph) is used to register heart damage, heart rate, and heart attack damage. This is still used today. Crayolas first products were dustless chalk and pencils. A fun fact would be that they got an office in the Big Apple. The Wright brothers didnt start with a flying machine. They actually started with a bicycle shop. But they did invent the flying machine called Before the caterpillar track was invented many vehicles would sink into the mud
1910s When the titanic sunk 705 people lived, next to a surprising 1522 people who died. The zipper first called the clasp lock was debuted at the 1893 Chicago World Fair by Wickcomb Judson. Inhaling chlorine gas is very dangerous, it can destroy the respiratory organs, bringing on choking attacks. The Little Willie was an invention that was an armed caterpillar tractor. 20% of Americans in the US were infected with influenza.
1920s The polygraph (AKA the lie detector) is used in interrogations of suspects of a crime. This machine measures changes in breathing, blood pressure, pulse and perspiration of the body. But polygraphs are no longer used as direct evidence due to the fact that you can fool the polygraph. The breadbox radio is a radio design invented by Atwater Kent. This is built on wooden plank that holds the radio above it. This particular design was built in One of Wonder bread's slogans was build a better boy trap! Mickeys original name was Steamboat Willie and he served as a sailor on a steamboat. Most food is chilled to -40°F to -45°F using a calcium chloride solution.
1930s Some of the first Nuclear Bombs were nicknamed Fat Men. The bomb dropped on Hiroshima was called the Little Boy. The Hoover Dam is 726 feet tall and 1,244 feet long. At its base the Hoover Dam is 660 feet thick & its top 45 feet thick. Did you know solid nylon is used for mechanical parts such as machine screws, and gears. Amelia Earhart was the first woman to fly solo across the Pacific Jumbo Trucks were able to transport many men.
1940s The first bomb was a Uranium bomb which weighed in at over 4 & 1/2 tons nicknamed "Little Boy, was dropped on Hiroshima August 6th, The first microwave was almost 6 feet tall, weighed 750 pounds,and cost about $5000. Traveling at a supersonic speed is like going 761 mph, Speeds 5 times greater than the speed of sound. Velcro made of Teflon loops, polyester hooks, and glass backing, is used on space shuttles. Napalm is an effective substance used in combat with flamethrowers to igniting targets.
1950s The first test was called, ABLE. It was dropped on July 1, from a B-29 plane. Ski-doo could be modified for military use. The first 3-D movie was Bwana Devil. 3-D glasses work by two different colored lenses, red and blue. These 3-D glasses are also brain teasers. Norwood, Colorado had space for 64 cars. Movies were projected onto these large out door screens. DNA can be used to identify criminals after a crime has been committed at a certain location.
1960s The Magnavox odyssey was one of the most popular game systems in the 1970s. Some of the games for the Odyssey were, Soccer, Table tennis, and Interplanetary Voyage. Kevlar is used in fiber optic cable, ropes, cables, and composites. The first ATM was used by many people. It was one of the most popular ways of getting your money. It was faster than going into the bank and waiting in line for your money. The word cassette is French for little box. The first cassettes had one song on each side. With out lasers we would be unable to listen to CDs
1970s Floppy discs used to be eight inches long in Calculators started as large, expensive, mechanical machines; today most are cheap, electronic, credit card sized devices. Gore-Tex is one of the largest privately owned companies in the United States. A cell phone is known as cellular because the phone uses many base stations to separate a service area into many cells. The Atari was released in This game became one of the most successful games in the 70s.
1980s Mt. St. Helens killed thousands of plants and animals. They lost 60,000 acres of forest. The first artificial heart were developed 25 years ago. When camcorders were first put on the market they were so large, it required a person to support it on their shoulder. On November 10, 1983, Microsoft Corporation announced Microsoft Windows would be on the market. The first time DNA fingerprinting was used was for a criminal case in England in 1987.
1990s Final GPS satellite was launched on June 26, Hubble orbits Earth once every 96 minutes, being at 360 miles above the Earth's surface. Shawn Fanning a college dropout at age 19, him and some friends start the Napster Inc. file-sharing service, which gained overnight popularity on the Internet. Dolly died of a lung tumor brought on by a virus. The station's truss is 134 feet long and will be 354 feet, the longest man-made object to fly in space.