By: Virginia Gaces
Serum is the supernatant fluid when clotted blood has been centrifuged. It is the best specimen for most clinical chemistry laboratory tests because of its specific characteristics. Here are the reasons why serum is the best specimen. *Serum has less protein When blood clots, one...
By: Maffew James
Hydrogen peroxide is a strong oxidant with many valuable uses across a broad range of applications. The bleaching properties of hydrogen peroxide make it a useful tool to remove colour from wood pulp and textiles, whilst the fact that it breaks down into harmless water...
By: Andrew Willson
The radioactive isotope, Iodine-131, has been in the news recently because of the disaster at the Fukushima power plant in Japan. One term that keeps arising is ‘half-life’. At its most basic, the half-life of an isotope refers to the time it will take...
By: Alison Bowler
Plutonium is a radioactive element discovered in 1940 by Seaborg, McMillan, Kenned, and Wahl when they bombarded uranium with deuteron atoms using the 60-inch cyclotron at Berkeley, California. It is a transuranic element with the atomic number 94. For all industrial processes plutonium is considered...
By: Maria F. Garcia
Bevel gears look different from ordinary gears. This special type of gears can be distinguished from the ordinary or spur gears by looking at the axes of the two shafts as well as the shape of the tooth-bearing faces. The axes of the two shafts...
New study finds life possible on 'large parts' of Mars
By: Terrence Aym
For decades the debate has raged over whether Mars has life—or ever supported life. Now a team of Australian scientists report in the journal Astrobiology ["An Extensive Phase Space for the Potential Martian Biosphere"] that Mars probably not only has existing life, but the...
By: Bruce Tyson
Scientists now report a huge gas cloud at the center of our galaxy, setting the stage for a stellar spectacle as it gradually succumbs to a massive back hole. This will be the first time humans will watch a black hole swallow a gas cloud...
By: Patrick Sills
An exoplanet is an extra-solar planet located out of the familiar solar system that humans on planet Earth occupy. The existence of such planets outside of this solar system has been speculated on for decades, if not centuries, but wasn’t confirmed until the 1990s...
Tips for understanding physics
By: Anna Saks
Physics. To some people, the subject brings chills down their spines: long hours of brain- wracking word problems with too many given values to use and too many unknown ones to find. To other people, the subject sparks excitement, imagination, and the creativity that has...
By: Patrick Stephen Baker
Phobos and Deimos: The moons of Mars - The two small moons of Mars were discovered in 1877 by Astronomer Asaph Hall working at the Naval Observatory in Washington D.C. Hall named the two natural satellites; Phobos (Greek for fear or panic) and Deimos...

 

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