NALTA: North America Large-area Time-coincidence Arrays

Okay, that’s a mouthful.  I first read about this a month ago and put it on my list of things to look into.  What I was hoping for was something that might be applicable for participation by middle school students.  NALTA is a cosmic-ray detection experiment which requires fairly simple equipment which is placed on …

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WeatherBug Example Exercises

I’ve been advocating the use of WeatherBug data in normal classroom exercise for a while.  I’m not sure that it’s caught on, so I decided to start putting together some sample exercises.  This section is that, the examples.  As example, they are “fully worked” meaning I ask questions and then provide answers.  Of course, in …

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WeatherBug Exercise 1 (Math): Temperature Statistics: Max, Min, Range, Median, Mean

The process of calculating an average is not hard, but it can be tedious. So, in math class, the children are often given a set of made-up numbers that make the process easier. In this exercise, you don’t get a break; we’re going to use real data from the WeatherBug at P.S. 102 for December …

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Saturn’s Ring System Just Got Bigger

Okay, the rings themselves haven’t changed at all.  But it turns out that there is an outer dust ring that is about 24 million kilometers in diameter composed of dust grains that do not reflect visible light.  Because of that, it hasn’t been seen before.  NASA has a short (very short) press release showing an …

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Historical Videos of Nuclear Tests

The national Nuclear Security Administration’s Nevad Site Office has made available a number of historically important videos for nuclear tests from the 1940s through the 1960s.  Apart from our common morbid fascination with things that go boom, you can always think of splicing these in as special effects for your next July 4th videos…. Videos …

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Oobleck – It’s not just for Dr. Seuss Anymore

Oobleck is actually more than just a made-up name for the stuff in the Dr. Seuss book, it’s the name now applied to a whole class of fluids which display what is called "shear thickening."  That just means that when they have a sudden force applied, include of splashing to the side, the perversely get …

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