-
Denial of the existence of atoms
-
Atoms are solid, homogeneous, indestructible and indivisible
-
experiment being turing HgO into Hg+O.
-
defined the law of definite proportions
-
All atoms of a given element are identical, having the same size mass and chemical properties. atoms of a specific element are different from those of any other element.
-
equal volumes of gases at the same temperature and pressure contain equal numbers of molecules
-
invented the friction match
-
invented the lawn mower
-
invented the Cathode Ray
-
Rotary Kiln is invented by Frederick Ransome
-
Thomas Edison invented the first working Phonograph
-
Identified the first subatomic particle-the electron
-
Discovered the X-RAY
-
Matter can gain or lose energy only in small specific amounts called quanta
-
Nobel prize for research in radioactivity
-
mass (m) and Kinetic energy (E) are equal, since the Speed of light(c2) is constant.
-
determined the charge of an electron
-
concluded that there was a tiny dense region which he called the nucleus
-
discovered that atoms of each element contain a unique positive charge in their nuclei
-
tank was invented by ernest Swinton
-
showed that the nucleus also contained another subatomic particle a neutral particle called the neutron
-
Developed an explanation of atomic structure that underlies regularities of the periodic table of elements
-
Discovered that electrons had a dual nature-similar to both particles and waves
-
Described atoms by means of formula connected to the frequencies of spectral lines
-
Viewed electrons as continuous clouds and introduced wave mechanics as a mathematical model of the atom
-
FM radio is patented by inventor Edwin H. Armstrong
-
V-2 rocket worlds longest ballistic missile Developed in Nazi germany during world war 2
-
America successfully developed the atomic bomb
-
invented pocket calculator
-
First video game for TV