Product reviews: Meade ETX-LS ACF 6" telescope
By: Matt Kelly
As a perpetually skint Astronomer you can imagine my joy when hearing the news that my local Astronomy group had just bought the much acclaimed Meade ETX-LS. One of the more expensive telescopes I've ever used (my club spent just over £1200). What sets...
By: Dawn Denmar
There are several methods for testing for the presence of lead in everyday materials and some of these are listed below. Firstly, it is important to point out that lead can be dangerous to humans, when present in high quantities, and can also contaminate the...
Product reviews: GSO 15 mm Super Plossl Eyepiece
By: Matt Kelly
For me the two sweetest words in the English language are low cost, as long as a product is low in price and not "cheap" it will usually grab my attention. That's why I have such a love of the Taiwanese company Guan Sheng Optical...
History of the Nobel prize for chemistry
By: Bill Georato
A history of the Nobel prize in Chemistry Where it began: Alfred Nobel is best known for two great, and perhaps opposite, accomplishments: He invented dynamite. He also invented the Nobel Prize. According to Nobel’s last will, the majority of his estate was...
Contrasting the photoelectric effect and the Compton effect
By: Barnaby Meins
The photoelectric effect refers to the emission of electrons when electromagnetic radiation is incident on a metal surface. In an electric circuit consisting of a photocell, when electromagnetic radiation, such as ultraviolet rays is incident on a photocell, an electric current flows and the current...
How solar flares can disrupt power on the earth
By: D. Vogt
Solar flares are massive energy emissions from the Sun, usually associated with sunspot activity. When they strike the Earth, they can cause a range of meteorological phenomena. More disturbingly, however, particularly powerful solar flares can also cause disruptions to the electricity grid and to global...
By: Leigh Goessl
Over the last few months NASA has been searching for planets outside our own solar system with the Kepler space telescope. It seems this objective to find additional planets has been reached with the recent discovery of two new planets. On August 26, 2010 NASA...
NASA announces discovery of two new planets
By: D. Vogt
In August 2010, NASA's Kepler Mission announced the latest series of results from the Kepler space telescope. The new findings actually included a number of new planets in several different star systems. However, the most immediate returns - and the highlight of the most recent...
Book reviews: Is God a Mathematician? by Mario Livio
By: Dyana Hepburn
Is God a Mathematician by Mario Livio, © 2009, First Simon and Schuster hardcover edition January 2009. "Is God a Mathematician?" by Mario Livio has an enticing title. It appeals to persons of a religious nature, those interested in the concept of God as...
NASA set to reveal big news from Kepler, it's planet hunting spacecraft
By: D. Vogt
In August 2010, NASA released the next major discovery by its highly-touted Kepler Mission space telescope: another solar system with multiple planets, like our own. This discovery was long expected, but until the launch of the Kepler telescope, available technology simply did not generally have...

 

1 388 389 390 391 392 547
CHOOSE YOUR SCIENCES 360 TOPIC: