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Blue laser awesomeness
Yes, green laser pointers are cool. Especially when you use them to make stuff fluoresce. Ok, what about a blue laser pointer? They are getting surprisingly cheap (Amazon has a 10 mW for pretty cheap)....
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Kids like demos
Sometimes I get asked to do some demos for kids. I like this, it is fun. This week, I was asked to do just such a demo. Kind of as a historical record, I am going to document what I did. The audience...
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More Dangerous Kids
My car had a flat tire. When you get a flat tire, you might as well make something useful of it – right? As I was jacking the car up, I had a great idea. Use this for one of my “Spoof Science” videos....
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New Game: What is this item?
Let’s play a game. I think this will be fun. So, a couple of years ago I had the duty of organizing the physics demo room (well, “demo” is maybe not the best term). This room is quite large and there...
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What is this #1: Answer
Perhaps you have had enough time to think about the first “What is this” demo item. Here is the item in question. It seems most of you were right on track with this one – probably because you can still...
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What is this? Number 2
Here is my plan. Post a “what is this” on every Friday until I run out of things. I will post the answer on Tuesday. Maybe we should start keeping points. You get more points for being the first one to...
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What is this #2: Answer
Reader Fruity was the first to correctly name this device – on just the 9th comment. Impressive. Honestly, when I found this thing I had no clue. I asked other physicists and none of us were sure....
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What the HECK is that? Number 3.
Please note the official change of the title of this game, it is no longer “what is this”. Here is the item: I suspect someone will know what this is. Honestly, I didn’t figure it out right away....
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What the heck is this answer 3
Congratulations Fran. Not only did she answer the “What the heck is this?” correctly, she was the first commenter. Here is the original item: It is of course a gas discharge tube. You put these tubes...
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Happy g day
Actually, it should be called Happy “Magnitude of the local Earth gravitational field” day. You know, 9.8 N/kg on September 8 (9/8). Get it? Well, the idea was for the physics students and faculty to...
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