Physical Science
By: Tarek Musslimani
In this article, the concept of the spin is discussed, and in particular the electron spin due to its importance to the understanding of the theory of chemical bond and spectroscopic information of atoms and molecules. Spin is a fundamental property of all particles on...
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Tips for making candy glass
By: Sandra Louis
Candy glass is easy and fun to make. The project involves chemistry and cooking, a win-win combination. As the sugar is heated with the other ingredients, the sugar’s chemical structure changes and it binds to the other materials. Heat becomes an important catalyst in...
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Product reviews: Skywatcher 6.3mm SP-Series Super Plossl eyepiece
By: Matt Kelly
Skywatcher'sSuper Plossls are amongst the lowest priced eyepieces available today at a mere £20. As such you could be forgiven for dismissing them altogether, if you did, however, you'd be missing out on an incredible bargain as each one of the SP series can...
Product reviews: Celestron Ultima LX 8mm eyepiece
By: Matt Kelly
Celestron have been known in the past to be a little hit & miss where eyepieces are concerned. While their telescopes are of an exceptional quality their eyepieces are somewhat more sporadic in how they've been received. So where does the Ultima LX lie? Aesthetically...
Factors that affect vapor pressure
By: Ernest Capraro
The molecules (and atoms) of liquids and solids are constantly in motion. When they have enough energy, they may, upon reaching the surface, escape into the surrounding environment as a gas. Vapor pressure refers to the partial pressure of this gas at equilibrium. That is...
By: D. Vogt
Understanding the Moon's influence on the Earth means going well beyond the Moon's role in causing the tides, although these are the most obvious short-term manifestations. Essentially, understanding the Moon's influence on Earth means asking the question, what would the Earth be like without the...
What was the Heliocentric model of the universe?
By: D. Vogt
The heliocentric model of the universe (also known as heliocentrism) is a now-obsolete theory which states that the Sun lies at the centre of the universe and that all other objects orbit around the Sun. It was first put forward (at least in recorded history)...
Product reviews: Baader RGB Filter Set with IR Cut
By: Matt Kelly
Whether you're imaging objects within the solar system or trying to capture the ethereal wisps of a distant emission nebula or galaxy you will get the best results from a monochrome camera than you will with an equivalent camera with built in colour capabilities. Monochrome...
Should we Contact Aliens
By: Anthony Megna
Suppose there is hard evidence that an alien civilization exists, is it realistic to assume that we wouldn't try to contact them? Of course not, we would do everything in our power to try and contact them, not matter what anyone thinks! And that is...
By: D. Vogt
A "shooting star" is the term commonly used for a meteoroid when it enters the Earth's atmosphere and burns up, leaving a streaking trail of light in the night sky. A meteoroid is essentially a very small space object, ranging in size from a grain...
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