Overview of Rosetta European Space Agency Mission: Landing on a comet
By: D. Vogt
Rosetta is a European space probe which has been sent to comet Churyumov-Gerasimenko, where it will eventually attempt to deploy a special lander. It is named after the Rosetta Stone. The European Space Agency has a long history of work in close comet approach missions...
Four States of Matter not three
By: Carston Roach
Back in early grade school, we were taught that there were three states of matter. Solids are substances whose atoms are packed tight enough and moving slow enough that the molecule retains its same shape and same volume. Liquids are substances whose atoms are loose...
By: Carston Roach
The Big Bang, in today's society, has countless interpretations. Through all of this, however, it all boils down to one thing. Somehow, something expanded to create our universe. The general theory is that at first, the universe was in an infinitely hot and dense sphere...
By: William Menna
In chemistry, there are two types of reactions involving a redistribution of energy: exothermic and endothermic reactions. The concept of exothermic and endothermic reactions deals with the laws of thermodynamics, particularly the first law which states that energy cannot be created or destroyed, only converted...
By: Joshua Horn - 257112
Solar eclipses occur when the moon moves between the Sun and the Earth, temporarily obscuring sight of the Sun. For many, they are awe-inspiring events that bring the realities of nature and the universe around us to our doorstep. There are four main types of...
By: John Traveler
The world of traditional Newtonian physics deals with energy and matter, and the basic forces that hold the universe together on a cosmic scale, gravity, the electromagnetic force and the weak and strong nuclear forces. Quantum mechanics deals with forces, energy and matter too, but...
By: Nish Laverz
Stephen Hawking once said "If black holes can be manipulated or manufactured in the lab to act as a time machine, then surely someone, somewhere in the universe must have developed the capability by now? Or at least, one day, someone will. So-then where are...
By: Fayyaz Khan
It is a tribute to Isaac Newton's genius that he summarized the physical principles of motion of bodies in three succinct laws, which we will elucidate here. Before we explain the actual laws themselves, it is crucial to understand the physical concept of a force...
Understanding the periodic table
By: Chand Zahid
What is a Periodic Table? As a chemist, the Periodic Table is the most important basics you have to learn before you can start learning anything else within chemistry. It is like if you want to learn English, you must learn the alphabets. Periodic Table...
An explanation of Newton's three laws of motion
By: Elaine Sihera
Born in 1642, at a time of great political turmoil in the UK, Sir Isaac Newton was a British scientist whom many regard as the greatest physicist of all time perhaps because of the tremendous effect that knowledge of his three laws have had on...

 

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