That was a pretty interesting video. It was really cool to see the basic concepts that we learned last year being used in a college level class. -Kevin Meglathery
Not bad. and that sir is Physics @ M.I.T. Please keep in mind that this is a resource available to you at any time. Dr. Lewin is an excellent lecturer and not half bad at Astro Physics. There are others Dr. Shankar from Yale is not half bad either. http://oyc.yale.edu/physics/phys-200 *makes some really great mathematical references
Hey Mr. Crane, I know I am not going into AP physics this year, but I still watched the video. I will still try and keep in touch on the blog though, if that's okay.
Can we do the measuring thing where we stand up straight and lay down and see the difference? That doesn't make sense to me that we can be longer laying down than standing up.
When we are standing up, there is more pressure from gravity because it is acting only on the surface area of our feet. When we lay down, much more of our body is in contact with the ground. So when we're standing, the cartilage in our body compresses just a little bit, but it's enough of a difference to measure. -Kevin Meglathery
I just watched this and I was pretty confused with the part about the bones. I understand the math and was getting all the proportions fine, but I do not understand what he was actually explaining. I understand the math idea, but I do not understand the concept of his idea. Anybody wish to help or explain? Thanks!
He was explaining an old scientist's theory that bone size would scale directly with the animal's size. He thought that an animal of size X would have a femur of size Y and an animal of size 100X would have a femur of size 100Y. It all stemmed from the question "Why do humans only grow to a certain height?" the answer being that bones our size can only support so much weight. -Kevin Meglathery
That was a pretty interesting video. It was really cool to see the basic concepts that we learned last year being used in a college level class.
ReplyDelete-Kevin Meglathery
Not bad. and that sir is Physics @ M.I.T. Please keep in mind that this is a resource available to you at any time. Dr. Lewin is an excellent lecturer and not half bad at Astro Physics. There are others Dr. Shankar from Yale is not half bad either.
ReplyDeletehttp://oyc.yale.edu/physics/phys-200
*makes some really great mathematical references
Hey Mr. Crane, I know I am not going into AP physics this year, but I still watched the video. I will still try and keep in touch on the blog though, if that's okay.
ReplyDeleteAlways
DeleteCan we do the measuring thing where we stand up straight and lay down and see the difference? That doesn't make sense to me that we can be longer laying down than standing up.
ReplyDeleteWhen we are standing up, there is more pressure from gravity because it is acting only on the surface area of our feet. When we lay down, much more of our body is in contact with the ground. So when we're standing, the cartilage in our body compresses just a little bit, but it's enough of a difference to measure.
Delete-Kevin Meglathery
That actually explains it pretty well, thanks!
DeleteI just watched this and I was pretty confused with the part about the bones. I understand the math and was getting all the proportions fine, but I do not understand what he was actually explaining. I understand the math idea, but I do not understand the concept of his idea. Anybody wish to help or explain? Thanks!
ReplyDeleteHe was explaining an old scientist's theory that bone size would scale directly with the animal's size. He thought that an animal of size X would have a femur of size Y and an animal of size 100X would have a femur of size 100Y. It all stemmed from the question "Why do humans only grow to a certain height?" the answer being that bones our size can only support so much weight.
Delete-Kevin Meglathery