How scientists and engineers use metamaterials
By: Nancy Seddens
In the early 1970’s the words “Gentlemen, we can rebuild him. We have the technology.” introduced episodes of the ‘The 6 Million Dollar Man’. Rebuilding people by replacing lost limbs with mechanical parts was science fiction at that time but is...
How metamaterials interact with electromagnetic waves
By: Effie Moore Salem
Metamaterials and electromagnetic fields belong together, but before any conclusive statements can be made concerning how they react, individual introductions must first be made: *Metamaterials are specially designed materials purposely created to interact with electromagnetic waves. According to Materials Science and Engineering, "Metamaterials are composite...
What is a biosphere
By: Steven Parker
The term biosphere came from the geologist Eduard Suess in 1875 who defined it as "the place on earth's surface where life dwells".Physical Geographers describe the biosphere as the biological component of the Earth's systems, it is the surface of the Earth and the...
How to test which solids and liquids are the best conductors of electrical current
By: David Braybrooke
Any substance that electricity is able to move through is known as a conductor. It is possible to set up tests that measure the conductivity levels of certain materials, whether they be liquids or solids. A few simple materials are needed in order to carry...
The 19th century path toward quantum physics
By: SEG
Classical mechanics was Isaac Newton’s 1687 vision of the world: indestructible matter conducted the forceful energy exchanges propelling the ‘great mechanical machine’ of the universe. Definitively disassembled for inspection and precisely observed, measured and weighed with certainty, scientists would be capable of determining...
Tips for choosing a telescope for a beginning astronomer
By: Jose Juan Gutierrez
Watching the night sky has interested many generations throughout time. The invention of the telescope in 1608 by Hans Lippershey started the development and variation of the different designs, up to what we know today as modern and powerful telescopes. Since Galileo used a telescope...
By: Matt Kelly
Generally speaking there is an all encompassing rule for getting the most out of your observations, whatever specific type of star you are observing, and that is the darker the better. Observing from the darkest sky possible will make subtly different shades of colour present...
Astrophysicists: Strong evidence gigantic 'Planet X' does exist
By: Terrence Aym
What's up to four times as big as Jupiter, is so distant that astronomers haven't been able to find it in more than 80 years, and is the stuff of legends and conspiracy theories?"Planet X." A mystery object that most astronomers would rather...
By: Terrence Aym
NASA and the ESA agree, and so does the Russian space agency, Roscosmos—the sun is headed for a Grand Solar Minimum and a Grand Cooling will commence.The aptly named Grand Cooling is exactly what it implies: the sun is going to cool. That...
By: John Welford
By using increasingly powerful telescopes, fitted with various instruments to analyse the quality of the light collected from objects such as stars and galaxies, and by making calculations based on their observations, astronomers down the centuries have been able to gather a considerable amount of...

 

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