By: Dean Traylor
Something unique was spotted above the Hawaiian Islands in 1997. Powered by six propellers, it moved slowly and quietly through the sky, staying in flight above the coastal region for hours. The flying machine didn’t look like any other planes or jets. It was...
By: John Louie Ramos
Heavenly bodies such as meteoroids, meteors, meteorites and comets are often grouped and classified together since they basically refer to a chunk of either rock or ice that are too small to be considered as a planet. Meteoroids, meteors, meteorites and comets are all modes...
The physics of turbocharging
By: Sam Domett
The key to understanding a turbocharger is understanding volumetric efficiency. This is a measure of how effectively an engine is breathing, so force feeding it air makes it more powerful, which is what a turbocharger does. If an engine could completely fill the cylinder with...
Difference between meteoroids, meteors, meteorites and comets
By: Matt Bird
Meteoroids, meteors, meteorites, comets. All interchangeable words for basically the same thing, right? A rock flinging through the night sky. Simple enough - - but wrong. There's a reason these four phenomenon all have different names. True, they all stem from roughly the same thing...
Planet discovered outside solar system
By: Jose Juan Gutierrez
There´s no doubt that humanity is at the beginning of a new age of discoveries. Late in the last century we were surprised by the new discovery of distant planets outside the solar system (exoplanets), which opened the possibility to think about other distant...
What a dark nebula is
By: Sherry Horton Blake
In Thomas Hardy’s 1882 novel, “Two on a Tower,” Swithin St. Cleeve speaks to Lady Constantine regarding dark nebulae thus: “Look, for instance, at those pieces of darkness in the Milky Way . . . In these our sight plunges quite beyond any twinkler...
Planet discovered outside solar system
By: Kenneth Andrews
A milestone astronomical discovery was announced on January 10th 2011 by NASA's Kepler team at the American Astronomical Society's annual meeting in Seattle. Kepler's space telescope has discovered a new planet. Although it has only been very recently that scientists have been able to confirm...
By: Mr. Blue
Theory of Subjective Time Perception To understand the influence of time on the mind, we must first determine its significance. Time is measured and organized by perception - by our minds. We use the term 'time' to define the motion of events, like the events...
How to survive a solar flare
By: AngelaWhite
Solar flares are uncommon but they certainly do a lot damage when they do show up. One of the worst blackouts in history was caused by a solar flare. Actually, it was caused by the waves of radiation that came just after the flare from...
By: Michael Totten
Hundreds of thousands of stars circle slowly around the celestial North and South Poles of the night sky. Planets move slowly through the constellations. Satellites and the International Space Station move visibly across the night sky as they orbit the earth. But once in a...

 

1 432 433 434 435 436 547
CHOOSE YOUR SCIENCES 360 TOPIC: