The life of Carl Sagan

  • Carl Sagan was a renowned American scientist who brought science to the masses with his talent as an orator.
  • His words had an impact on the way the American public viewed and supported the field of space exploration from the 1970s until his death in 1996.
  • He was an outspoken and curious astronomer, cosmologist, astrophysicist and astrobiologist. He earned more than three degrees, was a Harvard lecturer and Cornell University professor, to name a few.
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carl sagan

"Imagination will often carry us to worlds that never were. But without it we go nowhere."

Carl Sagan

"For small creatures such as we, the vastness is bearable only through love."

Carl Sagan is most notably remembered for his gift of translating scientific undertakings into the language of human emotion.

He is less often credited as one of the driving factors behind Voyager's Golden Record. In 1977, Sagan gathered a group of scientific and cultural advisors that built a collection of 115 images, natural sounds from Earth, a selection of music, and greetings recorded in 59 languages that travel through space to greet any life-forms that might come across the record's path.

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Arthur C Clarke arguably did more than any other author since HG Wells and Jules Verne to catapult his mind into the future, taking a vast global readership along with him for the invariably wild ride. 

As a science writer, he conjured up the idea of a ‘personal transceiver’ small enough to be carried about, enabling contact with anyone in the world and also featuring global positioning, making getting lost a thing of the past. That essay was written back in 1959, and what he was essentially describing was the mobile phone. 

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The Pizza Principle: Linking Fast Food With The Economy
  • Fast food consumption can be used as an index to measure consumer behaviour and market changes.
  • The Pizza Principle, first noticed in New York City in the 80s, revealed that the cost of a subway ride and a slice of pizza remained the same for two decades.
  • How much a Big Mac from Mcdonalds (or a similar offering from KFC) costs around the world can measure how the same product costs in different countries. If the product price is the same, the countries have a Purchasing Power Parity (PPP).

Studies show that a large part of Stinson Beach near San Francisco will be under a foot of water in less than 20 years. Many think the 21st Century is the first time we faced this kind of event, but it is not.


Sea levels started to rise nearly 15,000 years ago with the end of the last ice age. With the possibility of a global sea-level rise of 3ft (1m) by 2050, researchers are looking at ancient stories that can convey a collective memory about land lost to the sea.

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