-
Sep 20, 1500
Hang Glider
Leonardo Da Vinci was very interested in flight and birds. He made many flying machines but this was the most famous. Da Vinci 's glider looke a lot like a modern hang glider. He made the glider out of bamboo. Da Vinci might have tested it but no one knows. -
Aug 16, 1504
The Mona Lisa
The Mona Lisa is one of the most famous paintings of all time. Leonardo painted the Mona Lisa as a portrait of Lisa Del Glocondo. Lisa's husband requested that Da Vinci paint a painting of his wife and he did. -
Galileo's Telescope
The astronomical telescope. In 1609, Galileo built a telescope. He used a convex glass lens at one end of the telescope to bend or twist the light rays. So the rays are brought together and focused into a clear, sharp, magnified, upside down image at the other end. -
Sir Isaac Newton invented the 3 laws of motion
Sir Isaac Newton invented the 3 laws of motion. The 3 laws of motion are things that describe motion. They are inertia, mass and force, and push. -
The Steam Engine As a Power Source
In 1763 James Watt recreated the steam engine by making it a power source so it would be easier to make power. The university gave watt a steam engine for repairs. That's when he discovered how bad the steam engine is for the earth. -
Electricity
Ben Franklin experimented with electricity. He flew a kite in a storm with a key on the end of the string. This experiment led to the lightening rod. -
First Clock in America
Benjamin Banneker studied a pocket watch and memorized every part. The amazing thing is he carved the different parts of the clock from wood. On his own he made them larger and constructed a clock. -
Cotton Gin
The cotton gin was an invention made by Eli Whitney to clean cotton 10x faster then a person could. It was a very useful invention because the south was struggling with cleaning cotton.
It was very expensive and many people copied the idea. -
Electromagnetism Iiscovery
in 1820 Michael Faraday discovered electromagnetism and thanks to that we can have wonderful TV. Electromagnetism is the study of magnets and how they work. A compass is an example of how magnetic fields work. Without these magnetic fields we wouldn't be able to tell the direction. Electro magnetism is magnets that come together and make things like computers or electric heat. -
Wireless Telegraphy
Samuel Morse made the wireless telegrphapy on May 24 1844. The wireless telegrhapy was one of the first phones. It help people send messages. -
Invented the Telephone
Alexander Graham Bell Invented the Telephone and taught the deaf to speak.. He was born in Edinburgh Scotland. He had 2 brothers . -
Discovery of radioactivity and polonium and radium
Marie and Pierre Curie began experimenting together. They discoverd two new radioactive elements, polonium and radium on April 20th, 1903. Radioactivity is the release of energy from atoms. -
The Light Bulb
Thomas Edison invented the first light bulb. He experiemented with thousands of different materials to see what works best. Finally he discovered that a carbon filament in an oxygen free bulb glowed the best. -
Rabies Vaccine
Louis Pasteuer discovered the rabies vaccine. He saved thousands of lives. In 1885 a boy was given the rabies vaccine because he got bitten by a dog with rabies. The boy had to take painful shots, but never got rabies. -
Working with Peanuts
George Washington Carver did a lot of experimenting on peanuts. He made over 300 products from peanuts. He made soap and ink from peanuts. -
Theory of Relativity
Albert Einstein thought of the theory of relativity. The theory of relativity has to do with motion and the speed of light. Einstein started playing the violin at the age of 6. -
Hubble's Law
Edwin Hubble discovers Hubble's Law. Hubble's Law just basically means that the universe is expanding. It helped Einstein discover the theory of relativity because the theoryof relativity only made sense if the universe was expanding. -
Penicillin
Alexander Fleming invented penicillin the first antibiotic or germ killer. His discovery was an accident. He was putting away plates when he saw goop killing mold on the plate. TIME magazine named him in the top 20 most important people in the world. -
Photo 51
Rosalind Franklin discovered the structure of DNA through a very detailed X-ray photograhp of coal. Photo 51 was taken by Rosalind herself. we would not have any evidence of DNA. -
The Polio Vaccine
On April 12, 1955, Jonas E. Salk {1914-1995} created the first liscensed vaccine for poliomyelitis {Polio for short}. It saved MILLIONS of lives because polio is a deadly virus that forces children into iron lungs {A medal device that helps you breath when your lungs are paralyzed}. But some kids got off easy and used crutches and braces ! -
Silent Spring
Racehl Carson wrote Slent Spring. It was pulished in1962. This book was pulished to make people aware of other living things. Also, it told peple about water pollution. -
Nobel Prize
Gertrude Belle Elion won the Nobel Prize for her drug. A raido reporter called her home at 6:30 AM to tell her she won but she did not believe him. After people kept calling her she believed it. She won the prize for physiolgy and medicine. -
A Laser was invented
Patricia Bath invented a laser to remove cataracts. The laser shoots a beam of light into the eye and shatters the catarcat. Patricia Bath thinks that the laser is safer than haveing to have an ultrasound.
