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Tag archives for demo

What the heck is this? (4)

Here is the next item. There is a threaded plug on the top. I took it off so you could see inside. The whole thing is pretty heavy. Good luck, and let’s be careful out there.

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 build some stuff to do outside – projectile motion type stuff. Well, we had the idea a while ago and…

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 in there (as shown above) with helium or neon or whatever in there and it excites the gas to…

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. However, I have found that the readers as a group generally are more knowledgeable than me by…

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. However, I did find the answer. Let me show you my secret. I don’t know how old this…

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 get it right. You lose points for getting it wrong. Last week was easy,…

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 buy such a device. This thingy launches a small ball horizontally while at the same…

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 is a whole bunch of stuff in here, some of the items are very…

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. The only problem is that this takes a ton of work…

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 It is always important to think about who you are talking to.…