miscellaneous

The evolution of a spider (or not) – science and religion battle over Darwin’s Theory of Evolution

What is the Theory of Evolution? Being a prominent (ahem) member of the scientific community, Reeko has a lot of scientist friends.  Reeko knows that the thing that bugs scientists more than anything, is when people don’t believe their theories (well, that and burning lab coats). And when it comes to Darwin's Theory of Evolution, scientists treat it almost like a religion. On the flip side, some religions have a big problem with the scientists’ Theory of Evolution making the whole subject of “natural selection” a huge heated debate between scientists and religious groups. Scientists theorize that humans evolved from single cells to fish to monkeys. Some religious groups, called creationists, take offense at this proposal saying it’s silly to think that people magically grew, over…
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Light

Create an oven using a pizza box

Experiment to create a real oven using a pizza box Does you family head to the kitchen table every time they hear a fire siren? Do you get even with the neighborhood bully by inviting him over to dinner? Does Dad refer to the fire detector as the “oven timer”? It sounds like your family might need cooking lessons. Well Reeko can’t (or won’t) provide cooking lessons but he sure knows how to make a cool little oven – out of a pizza box! And while we’re at it we’ll learn how thermal collectors are able to collect sunlight and convert the solar radiation into heat. The sun is an ultimate form of energy and it has produced that energy for billions of years. Solar…
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Atomic/Electric

Making Sparks – Part II

Making Sparks - Part II Ever heard of a Leyden jar?  It's been around for over 200 years and is the forerunner of the modern day capacitor.  The guy who invented it tested it on himself and stated that 'my whole body was shaken as though by a thunderbolt'.  And no, his name wasn't Leyden - Leyden was the town that the jar was invented in.  If we had named the jar after the inventor it would be called a 'Musschenbroeck jar' (now you see why it's called a Leyden jar).  It was once discharged through seven hundred monks who were holding hands.  They flew up into the air simultaneously.  Definitely sounds like a experiment Dad should be involved By the way, you might want…
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Atomic/Electric

Lemon battery

Lemon battery Batteries store chemical energy that can be transmitted as electrical energy through various components in a circuit. You can think of the circuit as the path the electrons (electricity) take. The path has to have no breaks in it and it much be a path made of a material that will allow the electrons to flow ( most metals although some are better conductors than others). Batteries, such as the one we are about to build, have electrodes, or the connection points on the battery. The anode is the electrode at which electrons leave the cell and oxidation occurs, and the cathode is the electrode at which electrons enter the cell and reduction occurs. In our battery, the lemon juice acts as the…
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