Today is the Birth Anniversary of great Indian Scientist , Vikram Sarabhai. This post is dedicated to all great Scientists who gave a big contribution to the field of science.
Vikram Sarabhai was one of the greatest scientists of India. He is considered as the Father of the Indian space program. Apart from being a scientist, he was a rare combination of an innovator, industrialist and visionary. He was honored on his first death anniversary by India Post on 30th December 1972. This 20 paisa stamp was issued featuring him with his ROHINI rocket and a dove. Considered as the Father of the Indian space program, Vikram Ambalal Sarabhai was born on August 12, 1919 in Ahmedabad. After his matriculation, Vikram Sarabhai proceeded to Cambridge for his college education and took the tripods degree from St. John's college in 1940. When World War II began, he returned home and joined as a research scholar under Sir C. V. Raman at the Indian Institute of Science, Bangalore His interest in solar physics and cosmic ray led him to set up many observation stations around the country. He built the necessary equipment with which he took measurements at Bangalore, Poona and the Himalayas. He returned to Cambridge in 1945 and completed his Ph.D in 1947.
Vikram Sarabhai was instrumental in establishing the Physical Research Laboratory (PRL) in Ahmedabad in November 1947. Vikram Sarabhai did research on the time variations of cosmic rays and concluded that meteorological effects could not entirely affect the observed daily variations of cosmic rays; further, the residual variations were wide and global and these were related to variations in solar activity. Vikram Sarabhai visualized a new field of research opening up in solar and interplanetary Physics.
The year 1957-1958 was designated as International Geo-physical year (IGY). The Indian program for the IGY had been one of the most significant ventures of Sarabhai. It exposed him to the new vistas of space science with the launching in 1957 of Sputnik-I. Subsequently, the Indian National Committee for Space Research was created, of which Vikram Sarabhai became Chairman.With active support from Homi Bhabha, Vikram Sarabhai, set up the first Rocket Launching station (TERLS) in the country at Thumba near Thiruvananthapuram on the Arabian Coast .
After the sudden death of Homi Bhabha in an air crash, Vikram Sarabhai was appointed Chairman, Atomic Energy Commission in May 1966. He wanted the practical application of science to reach the common man. He decided to acquire competence in advance technology for the solution of country’s problems based on technical and economic evaluation of its real resources. He initiated India’s space programme, which today is renowned all over the world. Dr. Vikram Sarabhai was awarded with Shanti Swarup Bhatnagar Medal in 1962 and Padma Bhushan in 1966. Vikram Sarabhai passed away on December 31,1971.
New stamps on Astronomy from Bangladesh
Here are the recent stamps issued on Astronomy by Bangladesh Post. Our thanks to Mr Pradip Jain for the information about these new stamps. Mr Jain may be contacted at philapradip@gmail.com for these nice stamps.
International Year of Astronomy
Date of Issue - 19 July 2009
Perseids Meteor Shower Will Light Up The Sky On August 12
Strong Meteor Shower Expected Tonight
Weather-permitting, tonight and tomorrow night should offer a great chance to see some celestial activity as the annual Perseid meteor shower hits its peak. The Perseid shower happens when the Earth passes through debris left from the Swift-Tuttle comet which last came this way in 1992.
The annual Perseid meteor shower is expected to put on a good show this week for those willing to get up in the wee hours of the morning and wait patiently for the shooting stars.
In North America, the best time to watch will be between midnight to 5 a.m. on Wednesday, Aug. 12, but late Tuesday night and also Wednesday night could prove fruitful, weather permitting.
The Perseids are always reliable, and sometimes rather spectacular. The only things that puts a damper on the August show are bad weather or bright moonlight. Unfortunately this week, as the Perseids reach their peak Tuesday and Wednesday nights, the moon will be high in the sky, outshining the fainter meteors.
Still, sky watchers around the globe will have a good chance of spotting the brighter meteors. Some already are enjoying the show.
0 nhận xét:
Đăng nhận xét