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The wheel was invented in 3500 B.C. It’s a circular object that revolves on an axel. It’s allowed people to move things quicker.
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crews are short, slender, metal pins with a raised helical thread running around it. It was invented in 400 B.C. We use screws for holding things together that nails would slip out of.
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The lever was invented in the third century. It is a rigid bar resting against a pivot. It’s used to move heavy or firmly fixed loads with 1 end applying pressure to the other end. It’s important because it allowed people to move heavy objects more easily
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aper money was made in China between A.D. 618-907. It’s important because it took the place of trading goods and services for desired things. It is currency; money in the form of bank notes.
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The printing press is a machine for printing text or pictures from type or plates. It was invented in 1440. It allows people to print things in mass quantities.
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Gunpowder is an explosive consisting of sulfur, saltpeter & charcoal. It was invented in 1700 A.D. It allowed us to explode things & use it for weaponry purposes.
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Anesthesia was invented on October 16, 1846. It can relieve pain, especially by way of gases or injection before surgeries. It was important because it allowed us to feel no pain during surgeries.
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The telephone was invented on March 10, 1876. It’s a system that converts acoustic vibrations to electrical signals in order to transmit sounds, typically voices over a long distance using wire or radio. They’re important because they allow us to contact people long distances away & communicate in real time with them.
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Electricity is a form of energy resulting from existence of charged particles (such as electrons or protons) either statically as an accumulation of charge or dynamically as a current. It allows us to have lights, appliances and conveniences requiring power in our daily lives. It was discovered in 1879 by Benjamin Franklin.
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Automobiles are road vehicles, typically with 4 wheels, powered by an internal combustion engine or electric motor and able to carry people. They were invented in 1886. They allow us to travel more easily & quickly.
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Hybrids were invented in 1900 by Porsche Chief Engineer, Wolfgang Duerheimer, but weren’t widespread until 1997. They allow people to use less gas or fossil fuel to drive the same distance in their vehicle. A hybrid uses 2 or more types of power; internal combustion or battery.
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It was invented in 1902. It is a system for controlling the humidity, ventilation & temperature inside a building or vehicle. It allowed us to regulate the temperature inside places.
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Airplanes are powered flying vehicles with fixed wings & a weight greater than the air it displaces. They were invented on December 17th, 1903. They allow people to travel long distances very quickly.
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Computers are electronic devices for storing & processing data, typically in binary form. Computers were invented in 1936 by a civil engineer, Konrad Zuse. They allow us to store more data than we ever could before.
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Semiconductors - Semiconductors are solid substances that have conductivity of an insulator & most metals. They were invented in 1947. They are an important component in microprocessors
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A computer generated scenario that simulates a real world experience. It was invented in 1957. They are significant because they allow us to escape the real world around us & experience things in ‘another place’.
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Video games were invented in October 1958. They are games played electronically by manipulating images produced by a computer program on a TV or display screen. They are used for entertainment purposes.
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GPS was invented in 1995. It’s a global positioning system, based on satellite information. It allows us to reach our destinations quicker and without maps.
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Drones are unmanned, aerial vehicles. They were invented in 2002. They fly places when flight is risky or difficult for human beings.
