Search results
Results From The WOW.Com Content Network
GCSE Bitesize was launched in January 1998, covering seven subjects. For each subject, a one- or two-hour long TV programme would be broadcast overnight in the BBC Learning Zone block, and supporting material was available in books and on the BBC website. At the time, only around 9% of UK households had access to the internet at home. [3]
BBC Online, formerly known as BBCi, is the BBC's online service. It is a large network of websites including such high-profile sites as BBC News and Sport, the on-demand video and radio services branded BBC iPlayer and BBC Sounds, the children's sites CBBC and CBeebies, and learning services such as Bitesize and Own It.
The Day the Universe Changed: A Personal View by James Burke is a British documentary television series written and presented by science historian James Burke, originally broadcast on BBC1 from 19 March until 21 May 1985 by the BBC. The series' primary focus is on the effect of advances in science and technology on western society in its ...
Hacker Time; Hacker's Birthday Bash: 30 Years of Children's BBC; Hacker's CBBC Christmas Carol; Hacker's CBBC Top 10; Hacker's Crackers [29] Hacker's Olympic Rundown; Hai! Karate – Journey to Japan; Hairy Jeremy; Half Moon Investigations; The Hallo Spencer Show; Hangar 17; Hank Zipzer; Happy Families; Happy Tent Tales; Hardball; Hartbeat ...
The only reason life on Earth is possible is because of its stable orbit around the Sun. Elsewhere in the Universe, orbits are chaotic, violent, and destructive. On the largest scale, orbits are a creative force and construct the fabric of the Universe.
These observations can be used to determine changes in Earth's rotation over the last 27 centuries, since the length of the day is a critical parameter in the calculation of the place and time of eclipses. A change in day length of milliseconds per century shows up as a change of hours and thousands of kilometers in eclipse observations.
This will happen only after an extremely long time because first, some (less than 0.1%) [73] matter will collapse into black holes, which will then evaporate extremely slowly via Hawking radiation. The universe in this scenario will cease to be able to support life much earlier than this, after some 10 14 years or so, when star formation ceases.
The possible discrepancy between the ages of the Earth and the universe was probably one motivation for the development of the Steady State theory in 1948 as an alternative to the Big Bang; [5] in the (now obsolete) steady state theory, the universe is infinitely old and on average unchanging with time.