| It's like weight |
[Jan. 8th, 2009|10:42 am] |
Read this little tidbit on from this article on Yahoo news today:
Scientists mapped the Milky Way in a more detailed, three-dimensional way and found that it's 15 percent larger in breadth. More important, it's denser, with 50 percent more mass, which is like weight. (emphasis mine).
That's not a big deal to most of you reading this. For me, however with my engineering training, I could only smack my forehead and shake my head slowly. I can just see my high school physics teacher's face go red with anger as he growls "No, it's not like weight." He said that a lot to students unable to grasp the concept of mass. I seem to vaguely recall my college physics professor emphasizing the difference in class (although the college students were able to grasp the concept very quickly and the professor never struggled to restrain himself like my High School teacher did).
I hope my old high school physics teacher didn't read that article; he'd have a heart attack. |
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| Comments: |
It's not like weight.
It's not like weight.
It's not the same as weight.
My head asplode.
Whoa Doc Brown! That was heavy! | |
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