New Challenge


Certainly! Here are some famous experiments conducted by scientists other than Coulomb:

  1. Michelson-Morley Experiment: In 1887, Albert A. Michelson and Edward W. Morley conducted an experiment to measure the relative motion of Earth through the hypothetical luminiferous ether. The experiment involved using an interferometer to detect any changes in the speed of light in different directions. The null result of the experiment challenged the prevailing theory of ether and laid the groundwork for Albert Einstein’s theory of special relativity.
  2. Rutherford’s Gold Foil Experiment: In 1909, Ernest Rutherford and his colleagues conducted an experiment that led to the discovery of the atomic nucleus. They directed a beam of alpha particles at a thin gold foil and observed the scattering pattern of the particles. The unexpected results indicated that the atom had a tiny, dense, positively charged nucleus at its center, which revolutionized the understanding of atomic structure.
  3. Millikan’s Oil Drop Experiment: Robert A. Millikan performed the oil drop experiment between 1909 and 1913 to measure the charge of an electron. By observing the motion of charged oil droplets in an electric field, Millikan was able to calculate the charge on each droplet and determine that the charge was quantized and came in discrete units, revealing the fundamental nature of electric charge.
  4. Hubble’s Redshift Observations: Edwin Hubble, an American astronomer, conducted observations in the 1920s that demonstrated the expanding nature of the universe. By measuring the redshift of light emitted by distant galaxies, Hubble found that galaxies were receding from each other, providing evidence for the Big Bang theory and leading to the development of modern cosmology.
  5. Davisson-Germer Experiment: In 1927, Clinton Davisson and Lester Germer performed an experiment that confirmed the wave-like nature of electrons, which had been proposed by Louis de Broglie. They directed a beam of electrons onto a nickel crystal and observed a diffraction pattern, similar to the interference patterns observed with light waves. This experiment provided evidence for the wave-particle duality of electrons and contributed to the development of quantum mechanics.

These are just a few examples of famous experiments conducted by scientists other than Coulomb. There are many more significant experiments that have shaped our understanding of the physical world.」