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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.

Watermelon Collisions – ouch

Through random surfing, I found this clip from The Amazing Race (which is apparently some type of reality show). Don’t really know the set up except that it appears some girl is trying to launch watermelons with a slingshot. This looks bad, but she seems to not be seriously injured. Watermelon smashed on face. Wow.…

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…

The Curving Soccer Ball

You can call it football if it makes you happy. Anyway, this is a popular story going around. The physics of the magic curving soccer kick. Here are two ends of the spectrum. First, there is the lower, easier to consume version from io9.com Physics forced to come up with whole new equation to explain…

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…

Some Python notes

Yes, I love python. However, I am no expert. Most of the stuff I write in python is dirty and ugly code. Sometimes I figure out new things (things that programmers already know) and sometimes I forget these things. So, here are a few tips and tricks that I use from time to time. Really,…

Could I build a lightning detector?

A while ago, we had a ton of lightning. As a bonus, it always happened in the middle of the night. I love sleeping where it sounds like I am on the front line in WWI – no, I don’t. But, while lying awake waiting for the next BOOM I thought of something. Instead of…

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…

And just suppose you had no grade

It would be nice if I could come up with a good rhyme for grade to fit this title. One of my brothers is a biochemistry faculty at Appalachian State University (hint – he is the one with the same last name that I have). We were talking (and surprisingly agreeing) that grades were dumb.…