Voyager space probes

Human DNA contains almost twice as much information as is needed to code for all the substances produced in the body. Likewise, the digital data sent from Voyager 2 contain one redundant bit out of every two bits of information. The Hubble space telescope transmits three redundant bits for every bit of information. How is entropy related to the transmission of information What do you think is accomplished by having so many redundant bits of information in both DNA and the space probes ... 

The two largest satellites of Uranus, Titania and Oberon, were already discovered in 1787 by W. Herschel. Later Ariel, Umbriel and Miranda were found. The remaining ones were discovered by the Voyager 2 space probe in 1986. The smallest moons move on strongly perturbed orbits and collisions are likely to happen, e.g. Desde-mona may collide either with Cressida or Juliet within the next 100 million years. 

I 6 Select one of the unmanned space projects, such as Voyager or Galileo. Find out what data were sought by the unmanned probes or satellites what sensors were used how the data were transmitted and recorded what answers were obtained and what new questions were then asked. 

The world setting for chemistry has continued to change. The center of chemical activity has moved from Africa to India to Asia to Arabia to Europe to North America—if a center, that is, still exists. Chemistry has become increasingly delocalized and is now better described as a global enterprise. There have also been major technical advances affecting the course of chemistry—computers, transistors, lasers, space travel—and these have opened completely new areas of study. With such probes as Voyager we learned of planets with seas of hydrocarbons and bedrock of water and ammonia ice. Spectroscopists have found evidence of molecules in the empty space between stars, including carbon monoxide, ammonia, formaldehyde, cyanoacetylene, acetaldehyde, methyl mer-... 

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