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RP 5: MythBusters: How small could a lead balloon be?
On a previous episode of The MythBusters, Adam and Jamie made a lead balloon float. I was impressed. Anyway, I decided to give a more detailed explanation on how this happens. Using the thickness of...
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RP 6: Throwing a fooball, Part II
In part I of this post, I talked about the basics of projectile motion with no air resistance. Also in that post, I showed that (without air resistance) the angle to throw a ball for maximum range is...
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RP 11: When the centrifugal force is the centripetal force
It’s odd that I have talked about these forces so much. First, I talked about how centrifugal forces were not real and the difference between centrifugal and centripetal forces. Then I talked about how...
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MythBusters, Falling, Stopping, and Integration
In a MythBusters episode some time ago, Adam and Jamie jumped off a building. There was some cool stuff in this, but I want to focus on the acceleration data they collected. Before jumping into a pit...
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Yo-Yo: Rolling, sliding, pulling
This is actually been sitting around for a while waiting for me to post it. Here is another short Christmas-toy demo. I am going to pull this yo-yo at different angles and on two different surfaces....
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Pressure demo: suction
How does a suction cup work? It is all about the atmosphere. Here is a demo. Take some type of “suction cup” device. In this case, I used a toy dart. Stick it to something smooth and lift it up. Like...
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A small duct tape mistake
Yes, I am going to talk about the MythBusters latest duct tape episode. A couple of pre-post points: They call it “duct” tape. I call it duck tape. It doesn’t work very well with ducts. Also, it is...
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Preemptive MythBusters: Giant Water Slide Jump
I am excited. This Wednesday, the MythBusters are doing the giant water slide jump. Maybe you are new to the internet and you haven’t seen this video. Here it is: And since it is as old as the hills,...
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Stratos Jump for Mere Mortals
Crazy, but I was on CNN Saturday night. They contacted me at the last minute to talk about the Red Bull Stratos Jump. Here is a screen shot to show that I am not making this up (or that I have awesome...
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What is Arnold made of?
Of course I am talking about Arnold Schwarzenegger. After looking at how many bullets he carries in Commando, I remembered this scene (also from Commando) (warning: maybe some not great language and...
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