attack

Dot Physics

Category archives for attack

MythBusters and physics terms

In the last episode of MythBusters, they tried to reproduce the following experiment. Suppose you are driving in a car at 60 mph and you shoot a ball backwards at 60 mph (with respect to the car). Will the ball just drop (with respect to the ground)? Actually, it is a cool demo – I…

Here is the deal. Why would you put a lot of effort into explaining something wrong? I just don’t get it. Wouldn’t it be easier and better to just not say anything? The particular show I am ranting about is the 2008 Punkin Chunkin on Discovery (I think). Fairly ok show, but they should have…

The other myth the MythBusters looked at last week was the phrase “knock your socks off” (along with the dropping and shooting a bullet myth). But before that, let me complain. Maybe it is just me, but I totally cringe when these guys use the word ‘force’. Force probably isn’t the best term to use…

Professor Splash on Time Warp

Time Warp is this Discovery channel show that makes slow motion videos of stuff. Not too bad of a show (although I already talked about the samurai guy and “waves of energy”). Professor splash is this guy that jumps from really high positions and lands in 1 foot of water (and doesn’t die). He was…

There are a couple of things I should probably not talk about. One of them is photons. But no matter what you think about photons you will probably agree that this is not a very good description of electromagnetic radiation. (from comos4kids.com) Structure of Energy:All EM energy waves travel at the speed of light when…

I have already indirectly talked about this before, but I see it more and more. Say you have a show. It has to be more than entertaining, it has to educational. How do you make things educational? Describe the physics behind the concepts – right? Fine. How do you explain stuff? It’s simple. Just make…

Tom and Jerry, or Fetch! with Ruff Ruffman? Answer: Tom and Jerry. What? Yes. The reason: Tom and Jerry has bad physics but does not pretend like it has good physics. I know this is probably going to “type-cast” me as “that guy that keeps attacking Ruff Ruffman.” Soon to be followed by “Leave Ruff…

Dear Ruff Ruffman, My kids really like your show. However, there is a problem. You promote it like it is science, but the content keeps having mistakes in it. Previously, I pointed out your mistake about in infrared thermometer (if can’t remember, you said the thermometer measures the temperature with a laser. In fact, the…

What kind of electricity is lightning?

Someone complained about a teacher using this question and the answer was disputed. After some time, the teacher claimed that the answer was that lightning is static electricity because she looked it up on the internet. So, I decided to look also, here is what I found searching for “what kind of electricity is lightning?”…

Air equals gravity in movies (again)

The local Society of Physics Students invited me to watch the movie Sunshine and then participate in a post movie discussion. There was one thing in the movie that really got me. Of course the movie made many of the common space mistakes. But this one didn’t seem necessary. Let me outline this part of…