Father of Modern Chemistry. Found and termed oxygen and hydrogen and put together the first extensive list of elements.
Formulated his law of definite proportion. Pointed out copper carbonate must always be made from the same fixed proportions of copper crbon, and oxygen.
All matter is extremely small particles and a given element are identical, having same size, mass,and chemical properties.
Avogadro law states that equal volume of gases at the same temp. and pressure contain the smae number of molecles
The Civil War lasted four years. It was the 11 southern slave states known as the Confederates and the other 25 states known as the Union. After the four years the Union won and slavery was outlawed.
Assassination of Abe Lincoln
He was assassined by John Booth. He shot him in the head on a balconey. He died the next day
Alexander Graham Bell
When he was 29 he created his firdt telephone. In 1877 he created the Bell Telephone Company
Football was invented by a guy named Walter Camp. He got the idea from William Ebb Ellis who was playing a game of soccer when he picked up the ball and started to run with it, therefore breaking the rules and giving Camp the idea for the game.
Produce cathode- ray. Negatively charged by study of deflection.
Particles were a universial component of matter. there must be postively charged particles which carry the mass of the atom.
The positive charge and mass of an atom were conantrated in the center and only made up a small fraction of the total volume
A professor of theortical physical in Berlin showed that when vibrate atoms strong enough, you can measure the energy only in discrete units. He called these energy packets quaantal
Discovered radioactivity and won Note Prize in Physics.
Discovered radium and polonium. Researched radioactivity
Published the famous equation E=mc^2 and the theory of general relativity
Fequencies of x-rays should depend on the charge on the nucleous emitting there x-rays. atomic number positive charges.
Charge on a oil-drop wsa always a multiple of 1.59 X10^-19 Coulombs. He proved Thompson's hypothesis that the mass of an election is atleast 1,000 times smaller than the smallest atom
Colored Nail Polish
Colored nail polish was first invented in the 1920's and founded by Revlon. The Chemical compostion has changed, but the main formula is the same.
Physicist who made fundamental contributions to understanding atomic structure and quantum mechanics
Took Broglie and other ideas and made and equation solving the equation can predict the properties and reactivities of atoms and molecule.
proved that neutrons, neutral particles in the nucleous that made up apporximately half the mass of an atom did exist.
Creation of quantum mechanics and discovery of allotropic form of hydrogen
Extensions of wave mechanics
It was founded in the year 1948. It is a retail store, and there are 423 locations of the store
The first computer company
The first computer company was Electronic Controls Company. Founded by j.Presper Eckert and John Mauchly.
Apollo 11 is a spaceflight that landed Neil Armstrong and Edwin Aldrin Jr. on the moon on July 20, 1969. Those two were the first humans to walk on the moon.
Steve Wozniak designed the first Apple known as the Apple I computer in 1976.
It was founed in Menlo Park, California. The Founders were Sergey Brin and Larry Page. It is an search engine.
460-370 b.c. He was the first person to propose the idea that matter was not divisible. He believed matter was made up of tiny individual particles.
(384-322 b.c.) Atoms moved through empty space and didn't believe that empty space existed.
al-Qaeda hijacked four passenger jets. They were the Islamist Militant group. They purposely crashed into the Twin Towers in New York. Also crashed into the pentagon in Arlington. The Twin Towers were collapsed within 2 hours. 3,000 loved ones died.