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Frederick Laggenheim takes 1st photo of a solar eclipse
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In 1854, Philadelphia-based brothers William and Frederick Langenheim photographed the first solar eclipse since photography's invention in 1839. Only seven of the original eight daguerreotypes survive and are owned by the Metropolitan Museum of Art. Due to their delicate condition, the daguerreotypes are kept in storage when not part of an exhibition. Since daguerreotypes are a slow process, Jeff Rosenheim, the curator in charge of the Met's department of photographs believes that the brothers used a series of eight cameras to capture the different moments that the moon passed over the sun.
Earth’s rotation is changing speed. This means that, on average, the length of a day increases by around 1.8 seconds per century. 600 million years ago a day lasted just 21 hours.




You have to DREAM before your dreams can come true

- Dr. A.P.J Abdul Kalam
Myopic
Noun  Lack of discernment

S Somnath

Sreedhara Panicker Somanath is an Indian aerospace engineer who is the chairman of the "Indian Space Research Organisation" (ISRO). Under his chairmanship, ISRO carried out the third Indian lunar exploration mission named "Chandrayaan-3". The lander named Vikram and the rover named Pragyaan landed near the lunar south pole region on the 23rd of August 2023 at 18:04 IST, making India the first country to successfully land a spacecraft near the lunar south pole and the fourth country to demonstrate a soft landing on the Moon's surface. S. Somanath has served as the director of Vikram Sarabhai Space Centre, Thiruvananthapuram and director of Liquid Propulsion Systems Centre, Thiruvananthapuram. He is known for his contributions to launch vehicle design, particularly in launch vehicle systems engineering, structural design, structural dynamics, and pyrotechnics.

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