Spirits In The Sky

Written by Chris Meehan


Continued from page 1

Similarly, Marc Bolan?s music, which is both powerful and durable in its own right (consider: Midnight, Buick Mackane and Children ofrepparttar Revolution), has had its longevity enhanced by his tragic end, in a car crash, atrepparttar 109913 age of 30.

Think of Eva Cassidy and Nick Drake, whose gentle, lyrical, profound and poignant songs evokerepparttar 109914 memories of two unique creative talents. Cassidy has bequeathed a profound artistic legacy. Her songs cover themes of love, loss, transcendence and redemption and are drawn from diverse musical traditions. ?Eva by Heart? will ensure her spirit lives on.

Finally, Nick Drake?s three albums (Five Leaves Left, Bryter Layter and Pink Moon), although acclaimed by critics and fellow musicians, failed to find a broad audience during his lifetime ? which served to nourish his extreme clinical depression. However,repparttar 109915 growth in his posthumous popularity has established him as a significant figure in contemporary British popular music. A number of today?s musicians, including Badly Drawn Boy, Blur?s Graham Coxon and REM guitarist Peter Buck, cite him as an important influence.

_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_= This article was written by Chris Meehan who isrepparttar 109916 features editor at www.Just-Jammin.com . You may use this article on your site as long as this resource box is included as is with a clickable link back to Just Jammin

Copyright: PC Meehan 2005



Chris Meehan is the features editor at www.Just-Jammin.com. As well as a freelance writer on many subjects


Satellite Orbits

Written by Gary Davis


Continued from page 1
In order to do thisrepparttar satellite has a very special orbit. Not only does it orbitrepparttar 109912 earth, butrepparttar 109913 plane ofrepparttar 109914 orbit changes as well. It has to do this because each dayrepparttar 109915 earth moves a bit through space around. After 3 months,repparttar 109916 earth has moved 90 degrees of its orbit aroundrepparttar 109917 sun. Ifrepparttar 109918 satellites orbit wouldn’t have moved with it, it would show up 6 hours later than planned. (Actuallyrepparttar 109919 earth spins around its axis in approx. 23 hours, 56 minutes and 3 seconds and not in 24 hours. Because ofrepparttar 109920 earth’s orbit aroundrepparttar 109921 sun, 1 day lasts 24 hours. A star day however is approx. 23 hours, 56 minutes and 3 seconds long.)

However, there is no need to actively changerepparttar 109922 plane ofrepparttar 109923 orbit. The earth is not a perfect sphere but is a little bit wider aroundrepparttar 109924 equator. This is caused byrepparttar 109925 spinning ofrepparttar 109926 earth. The gravitational difference this causes changesrepparttar 109927 orbit of a satellite. Whenrepparttar 109928 angle withrepparttar 109929 equator is chosen correctly (approx. 8 degrees of a polar orbit), an orbit is a sun synchronous orbit.

A very special type of sun synchronous orbit is calledrepparttar 109930 dawn-to-dusk orbit. This orbit is aboverepparttar 109931 earth whererepparttar 109932 sun comes up or goes down. A satellite in this orbit never entersrepparttar 109933 shadow ofrepparttar 109934 earth but always receives sunlight.

Orbit Decay and Reentry

The earth’s atmosphere doesn’t stop at a certain altitude but really fades out into space. The higher you getrepparttar 109935 less thick it is until eventually there is no more atmosphere. Generally we say thatrepparttar 109936 atmosphere is about 100 km (62 miles) thick, but in reality it extends much further out into space. Satellites experience friction fromrepparttar 109937 atmosphere up to altitudes of 1000 km (620 miles).

Due torepparttar 109938 friction, a satellite will loose speed and with thatrepparttar 109939 altitude will decrease until eventuallyrepparttar 109940 satellite will fall out of orbit back torepparttar 109941 earth. Depending onrepparttar 109942 altitude this happens sooner or later. A satellite at an altitude of 200 km (124 miles) will stay in orbit for just a couple of months. At 300 km (186 miles) a satellite can stay in orbit for a couple of years. Above 1000 km (620 miles) a satellite can stay in orbit for thousands of years.

Letting Satellites fall back to earth and burn up inrepparttar 109943 atmosphere is also a way of disposing of satellites.



Gary Davis is owner of Dish Network Satellite TV, has several years experience in the Satellite TV Industry and has written several articles on satellite TV.


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