Tag: science & technology

Eugenics is the study of improving human genetic qualities through selective reproduction. Option A correctly captures this definition of altering human genetic components. The other options refer to racial groups, people of European origin, or plant genetics, which are not the definition of eugenics.

Numismatics is the scientific study of coins, currency, and related objects. Option A correctly identifies this. 'Numbers' would be numerology or mathematics, 'stamps' is philately, and 'space' is astronomy.

Ornithology is the scientific study of birds. Option B correctly identifies this. 'Study of bones' is osteology, 'study of smells' would be related to olfactory science, and ornithology is a valid established field.

Daniel Gabriel Fahrenheit invented the mercury thermometer in 1714, which became known as the doctor's thermometer due to its medical applications. Edison invented the light bulb and phonograph, Galileo invented the thermoscope (precursor to thermometer), and option A is correct.

Ole Rømer first demonstrated that light has a finite speed and made the first quantitative measurement in 1676 using Jupiter's moon Io. Einstein formulated special relativity, Newton studied gravity and optics but believed light speed was infinite, and Galileo attempted but failed to measure light speed. Rømer is recognized as the first to successfully measure it.

A.I. Oparin proposed the theory of chemical evolution of life in his 1924 book 'The Origin of Life'. His hypothesis suggested that organic molecules could form from inorganic precursors under early Earth conditions, eventually leading to primitive cells. Darwin proposed biological evolution by natural selection, Lamarck proposed inheritance of acquired characteristics, and Haeckel proposed recapitulation theory - none addressed chemical origins.

Alexander Graham Bell invented the telephone in 1876 and was awarded the first US patent for it. John Logie Baird invented television, Thomas Edison invented the phonograph and improved the light bulb, and James Watt improved the steam engine - none invented the telephone.

Einstein formulated the mass-energy equivalence principle E=mc², showing that mass and energy are interchangeable. This revolutionary concept became a cornerstone of modern physics. Planck contributed to quantum theory, Dalton to atomic theory, and Rutherford to nuclear structure, but none established this specific relationship.

Robert Koch identified the tuberculosis bacterium in 1882, developing his famous postulates for demonstrating pathogenicity. While he also investigated cholera and other diseases, his tuberculosis research was most groundbreaking. Koch received the 1905 Nobel Prize primarily for his TB work.

William Herschel discovered Uranus in 1781 using a telescope he built himself. This was the first planet discovered in recorded history. Galileo, Copernicus, and others studied planets but didn't discover new ones.