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What happens when you take some basic, introductory physics and apply them to cool things you see? Dot Physics happens. This blog looks at movies, experiments, demos and other topics typically aimed at the introductory physics level.
Rhett Allain is an Associate Professor of Physics at Southeastern Louisiana University. He
enjoys teaching and talking about physics. Sometimes he takes things apart and can't
put them back together.
July 30, 2010
Category: Analysis
Anyway, I was thinking about the part where Gondor sends a signal to Rohan asking them for military aid. Since this was before the invention of email, they had to do it with a signal fire.
Posted by Rhett Allain at 9:05 AM • 68 Comments • 0 TrackBacks
July 26, 2010
Category: calculation
Anyway, my first comment was: "Wow, everyone is wearing black. Was this a planned event or was black part of the dress code?" The response was that it was just pure chance that all the women were wearing black. ALL CHANCE?
Posted by Rhett Allain at 2:45 PM • 18 Comments • 0 TrackBacks
July 24, 2010
Category: stratos
WOMWorld/Noika has invited me to travel to Salzburg Austria and visit with the Felix and the Red Bull Stratos team. I am pumped up. Why? Why oh why you might ask. Well, I guess it is for several reasons. First,...
Posted by Rhett Allain at 6:35 PM • 3 Comments • 0 TrackBacks
July 23, 2010
Category: bike
So, the short story is that some people claim that Cancellara is cheating by putting a hidden electric motor in his bike. Now they are going to do random hidden-motor checks.
Posted by Rhett Allain at 11:25 AM • 5 Comments • 0 TrackBacks
July 21, 2010
Category: video analysis
Frank Noschese is a physics teacher and a blogger (and frequent commenter on Dot Physics). And I nominate Frank as the new librarian of videos that can be analyzed for realness or fakeness. Or, as Frank calls them Win-Fail Physics....
Posted by Rhett Allain at 10:40 PM • 1 Comments • 0 TrackBacks
July 20, 2010
Category: learning
I don't hate math. I just hate this kind of math. If you just give me the formula, I won't hate math.
Posted by Rhett Allain at 1:52 PM • 40 Comments • 0 TrackBacks
July 19, 2010
Category: acceleration
My conclusion was that it was easier in vpython, but prettier in matplotlib. So, why not just use matplotlib? There are a couple of things that make vypthon very attractive.
Posted by Rhett Allain at 12:28 PM • 2 Comments • 0 TrackBacks
July 16, 2010
Category: grades
All these people are seeing the shadow that they call grades. What is the real thing? Learning is the real thing.
Posted by Rhett Allain at 11:56 AM • 5 Comments • 0 TrackBacks
July 15, 2010
Just a quick note. Some of the images on posts before Jan 2010 might not be loading. I am working on this, but it might take some time. If there is some old post that you need or link to,...
Posted by Rhett Allain at 10:35 PM • 0 Comments • 0 TrackBacks
July 13, 2010
Category: acceleration
Here is a commercial for some Mercedes car. The first part is quite boring, but check out the stunt at around 2:00 minutes into the video
Posted by Rhett Allain at 10:50 PM • 19 Comments • 0 TrackBacks
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