Posts Tagged ‘momentum’
I think we are entering a new era. An era where it is quite simple to find and get great videos. Oh, just saw a great tackle on the TV? In the old days, you would have to get that video off the TV yourself. Not anymore. Welcome to the [...]
I am so pumped up that MythBusters is back on. Not only do I like the show, but it offers so many blogging opportunities. Their latest show featured car crashing myths. One of the myths from the episode was a redo of the myth where two trucks crash head on simultaneously crushing [...]
Now, what about Ruff? What did he do this time to get me fired up? The episode was about something to do with hockey. Some of the kids were trying to make goalie padding – maybe? It started off fine. They had someone talking about what the gear does. 1) allows the interaction from the hockey puck to act over a larger area and 2) increase the time of the interaction. The time is increased by putting some squishy stuff in there. Good
I have always wanted to ask a question like this – but never found the right test for it. Perfect for a blog.
Question:
Suppose you are in your car at a stop light behind a truck. The truck is pulling a trailer with a rollable tractor on it.
When the light turns green, the truck [...]
I said I would come back to this, and I am. I am a man of my word. Yesterday, I posted a link to a video of this really cool water rocket thingy.
I saw this on Hack a Day, but I am sure it has been posted in other places also (seems like something that would be on Swans on Tea). Check it out.
Amazing New Water-Powered Jet Pack – Watch more free videos
Some pretty cool stuff. I am pondering the questions to be answered right [...]
In the movie, two guys pour gasoline on a basketball and then light it on fire. One of the guys then gives the ball a good kick. The result is that some of the flaming gas stays in place and some goes with the ball (and some gets on the guy’s foot).
Collisions aren’t really that complicated. Basically, two objects interact and both object change momentum. Since the forces are the same (via Newton’s third law), momentum is “conserved.
Ideas about vehicles that are powered by the wind, but go faster than the wind keep coming up. Can these things work? Here is an analysis using ideas of energy and momentum of downwind faster than the wind vehicles (DWFTTW).
Maybe you know I like numerical calculations, well I do. I think they are swell. VPython is my tool of choice. In the post Basics: Numerical Calculations I used vpython and excel to do something simple. I will do that again today (in that this problem could also be solved analytically). [...]