Entry Ten: Bodies Bodies

Let's Do This Nasty Thang!

Here is my weekend: on Thanksgiving, I ate a lot of food and watched football, then fell into a distusting, piglike sleep. I did nothing else of note this weekend, except to see the Bodies Exhibit by Nordstroms. Sadly, none of this has anything to do with uniform circular motion.

So here is some review: the muscles and sinews of the now deceased Chinese men that were inside the Bodies Exhibit used to do work on objects. Work is a force exerted over a distance. For instance, if one of those dudes wanted to lift a football, he would do work equivalent to mgh, where m is the mass of the football and h is the height he lifts it to. I know, it is simple, but I am desperate here.

Hey! You used to be alive!

Entry Nine: Falling Music

Let's keep this short. This weekend, I played double bass in a couple of concerts. And Doc was there for both of them! I understand this to mean that he fears and respects my instrument.

Now for the physics: for my orchestra music to stay on the stand, its center of mass must be over the support. As long as this is true, it will not fall over. Cool-io Iglesias!

The center of mass is still above the support . . .

But not no more! It fall over. By the way Doc, if you are actually reading my crappy physics blog, I'd like to say thank you for being a patron of classical music, especially music performed by kids. In all sincerity, I think it's cool that you care and that you show your support and appreciation for us and what we do. Thank you sir. I hope you enjoyed Willy K.

Entry Eight: Stuff

I don't know.

Well, we just learned something about work and power. These things are very important when considering how one is to lift a book into the air or push a lawnmower or something lie dat.

Supposing I wanted to lift something, I would need to do work equivalent to mgh, m being the mass of the bass (lets say 15 kg), g being the magnitude of gravity (9.8), and h being the height I lift the bass to (how's about 1.5 m). In total, I do about 221 Joules of work. Now, if this takes me 1 second, I do 221J/s of work, or 221 Watts.

That's ill, in my opinion.

But bass takes more than 221J of work. It takes the sweat and determination of young boys and girls.

And now I'm done.

Doin work (son)