Guide to Space
Characteristics of the Sun
[/caption] Mass: 1.98892 x 1030 kg Diameter: 1,391,000 kilometers Radius: 695,500 km Surface gravity of the Sun: 27.94 g Volume…
Why Pluto is No Longer a Planet
In 2006, the IAU voted to remove Pluto from the list of planets in the Solar System. Instead, Pluto, and…
Beginner’s Guide To Binoculars
Before you consider buying expensive equipment for viewing the wonders of the night sky, binoculars are one piece of equipment…
How Can You See the Sun and the Moon at the Same Time?
[/caption] Did you know that you can see the Moon during the day? Many people only notice our Moon at…
What is the Difference Between Speed and Velocity?
[/caption] When it comes to measuring motion, that is the relative passage of an object through space at a certain…
Dispersion of Light
[/caption] Look up into the rainy sky! What do you see? Well, if its just rained and the sun is…
Diffraction of Light
[/caption] For some time, the behavior of light has baffled scientists. Initially, and in accordance with classic physics, light was…
Angular Velocity of Earth
[/caption] The planet Earth has three motions: it rotates about its axis, which gives us day and night; it revolves…
Beaufort Scale
[/caption] The high seas. Tankers, fishing trawlers and naval craft watch the horizon with eager anticipation. The wind is high…
What is Galactic Cannibalism?
Seattle, January, 2003. Two prestigious astronomers: Puragra GuhaThakurta of UCSC and David Reitzel of UCLA present some new findings to…