Skip to main content

Drake's Equation

The Drake equation is:
where:
N = the number of civilizations in our galaxy with which communication might be possible (i.e. which are on our current past light cone);
and
R* = the average rate of star formation in our galaxy
fp = the fraction of those stars that have planets
ne = the average number of planets that can potentially support life per star that has planets
fl = the fraction of planets that could support life that actually develop life at some point
fi = the fraction of planets with life that actually go on to develop intelligent life (civilizations)
fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space
L = the length of time for which such civilizations release detectable signals into space

Comments

Post a Comment

Popular posts from this blog

Amelia Dyer , a devil who lived in disguise

Amelia Dyer is believed to have murdered hundreds of babies during the 19th Century. Her crimes led to one of the most sensational trials of the period and shone a spotlight on the Victorian practice of "baby farming". How did a seemingly respectable woman stoop to such cruelty? On 30 March 1896, a parcel weighted down with a brick was fished out of the River Thames in Reading. Inside, swaddled in layers of linen, newspaper and brown paper, was the partially decomposed body of baby Helena Fry. White tape had been wound around her neck, with a knot under the left ear. It was a gruesome discovery, but one which would lead detectives to unravel the crimes of one of the 19th Century's most notorious child killers. Born in 1837 to a shoemaker in a small village in Bristol, Dyer had endured a tough childhood in which she was the main carer for her mentally ill mother. As an adult, she became a nurse. But, rather than use her skills to care for people, she embarked o...
Post a Comment
Read more

Reincarnation from Egypt

When Dorothy Eady arrived to Egypt for the first time, it was obvious to her that she had been there before. But her last visit near the Nile may have taken place thousands of years earlier. Dorothy was born on January 16, 1904 in the London suburb of Blackhearth. Doctors believed that she would not survive a terrible fall when she was three years old. However, it seems that the accident she faced was the beginning of her unbelievable life - a moment of opening the gate to the memories of a past life. Over the years, many skeptics tried to disprove Eady’s mystifying tale, but nobody could ever fully negate that she was one of pharaoh Seti I’s (c. 1290 - 1279 BC) lovers. An Ancient King’s Lover? Dorothy grew up in a Christian family and she attended church regularly when she was young. One day, her parents took her to the British Museum. While looking at the photograph of the temple of Seti I, a pharaoh of the 19th dynasty of the New Kingdom Period (and the father of Rameses ...
Post a Comment
Read more

Second Birth of Buddha ... Mulbekh, India

Situated 45 km from Kargil and 260 km from Leh in Ladakh region of Jammu and Kashmir, Mulbekh Monastery is famous for its two gompas and the nine mtr tall statue of Maitreya Buddha. The Mulbekh Monastery with its gompas stands on a peak above the Srinagar-Leh highway. The two gompas are of Drukpa (new Buddhist school) and Gelugpa (old Buddhist school). Another reason for Mulbekh Monastery’s fame is the 30 ft long limestone sculpture of Maitreya Buddha. Carved onto the rock face, the sculpture of standing Maitreya Buddha overlooks the National Highway 1D between Leh and Kargil. The sculpture measures nine meter from base to its top. Maitreyas is also known as Chamba so Mulbekh Monastery is popularly known as Mulbekh Chamba. Along with the nine meter tall Maitreya sculpture, there are many prized relics along with the statues and frescoes in the monastery. The rock sculpture is believed to have been carved by Ladakhi missionaries to propagate Buddhism. Though the rock sculpture repre...
Post a Comment
Read more