Backyard astronomy projects for kids
By: Sheri Fresonke Harper
The study of the stars and moon can entice kids into a greater interest in math and science, while tying into the fun of thinking about aliens and rockets and being weightless. Your backyard can be a source of fun astronomy projects that are both...
The nature of time as the fourth dimension
By: Bethany Brewer
The fourth dimension is nearly synonymous with science fiction and futuristic technology, but not only is it a part of our reality, it also holds the simple explanation of time. Granted, the fourth dimension can be classified in several different ways. For example, fourth-dimensional constructs...
Vernal Equinox traditions from around the world
By: Gemma Wiseman
Each year, the vernal or spring equinox is a special day around the world. In the northern hemisphere, it falls on March 20 (or March 21 in some years). In the southern hemisphere it falls on September 22 (or September 23 in some years). The...
The issues around nuclear power
By: Frances Laing
This afternoon sees me waiting for an important phone call. A friend of mine - Joan Meredith - is in Court today - being tried for her part in last year's protests at the Aldermaston nuclear facility. She was arrested along with hundreds of others...
By: Alison Bowler
The f block elements are formed of two series the Lanthanoids (or Lanthanide series) and the Actinoids (or Actinide series). They are also sometimes called rare earth elements, although many are more abundant than the platinum group of elements. Most elements are grouped vertically in...
By: Alison Bowler
Nickel Symbol: Ni Atomic Number: 28 Atomic Mass: 58.6934 amu (atomic mass units) Melting Point: 1453.0 C (1726.15 K, 2647.4 F) Boiling Point: 2732.0 C (3005.15 K, 4949.6 F) Number of Protons: 28 Number of Electrons: 28 Number...
What is the Wilson Effect?
By: Adam Feneley
The Wilson Effect in Solar Astronomy:The Wilson Effect describes the apparent increase in the ratio of the penumbra width in the direction of the solar limb (the distance measured across the solar disc radius), to that towards the centre of the disc as a sunspot...
Structure of the solar atmosphere
By: John Welford
The solar atmosphere is generally considered to consist of three zones, known as the photosphere (light sphere), the chromosphere (color zone) and the corona (crown). However, use of the term "atmosphere" can be misleading, because, in Earth terms, the atmosphere is understood to consist of...
Introduction to vectors in physics
By: Toni Gabucci
"We've reached a velocity of 300mph!" It's a common phrase you hear on TV, in one way or another. You might be surprised to learn that it's most often stated entirely wrong. You see, the term "Velocity" is a vector quantity, which probably means...
An overview about the chemical element Francium
By: Jamie Craig
Francium (Fr) is a group one alkaline metal. It has an atomic number of 87; meaning it has 87 protons and 87 electrons which are arranged in 7 different electron shells, the final shell containing just one electron. This means that francium could form a...

 

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