Significant advances in celestial spectroscopy were made in the early 19th century in England where William Huggins (1824-1910), an amateur astronomer looked...
Young’s Double-slit Interferometer A genius who started reading at the young age of two, Thomas Young (1773-1829), was an English polymath who...
The intellectual climate changed, albeit slowly. For example, a Jesuit astronomer, Johannn Schreck took a telescope to China in 1621, but he...
Spectroscopy’s most dramatic application was in determining an object’s motion towards or away from earth. In 1868 William Huggins found that dark...
“His life was a part of the growth of the scientific research and progress in India”. That is how the late professor...
The sky is mostly blue, but not always! Why? The short answer is air molecules in the atmosphere of the earth. They...
As a boy, he made his own toys before he was eight. He rotated a stroboscope in front of a mirror and...
Orphaned at the age of 11, Joseph von Fraunhofer (1787-1826) in Germany joined a glass maker as an apprentice. His employer denied...
When the news of Lipperhey’s invention reached Galileo Galilei (1564-1642), an Italian scholar, the latter built his own instrument. According to one...
The year 2008 marked the 400th anniversary of the invention of the optical telescope. The prototype of its modern version can be...
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