N****f
发帖数: 25759 | 1 Have you ever knocked on the bottom of a cylindrical ceramic mug
with a metal teaspoon right after pouring hot water in the mug? If
so, have you noticed how the tone of the sound it makes rises with
each knock, until it eventually sounds like you were clicking on a
solid chunk of rock? Can any of you science types explain this
phenomenon? |
s**********n
发帖数: 5854 | 2 摇摇头， 不是我的专业。。。。
【在 N****f 的大作中提到】
: Have you ever knocked on the bottom of a cylindrical ceramic mug
: with a metal teaspoon right after pouring hot water in the mug? If
: so, have you noticed how the tone of the sound it makes rises with
: each knock, until it eventually sounds like you were clicking on a
: solid chunk of rock? Can any of you science types explain this
: phenomenon?
|
A****T
发帖数: 3501 | 3 没注意，需要试一试。
【在 N****f 的大作中提到】
: Have you ever knocked on the bottom of a cylindrical ceramic mug
: with a metal teaspoon right after pouring hot water in the mug? If
: so, have you noticed how the tone of the sound it makes rises with
: each knock, until it eventually sounds like you were clicking on a
: solid chunk of rock? Can any of you science types explain this
: phenomenon?
|
s*******s
发帖数: 5087 | 4 热传导？
下回用冷mug装冷水放微波炉一起加热后，再敲试试
【在 N****f 的大作中提到】
: Have you ever knocked on the bottom of a cylindrical ceramic mug
: with a metal teaspoon right after pouring hot water in the mug? If
: so, have you noticed how the tone of the sound it makes rises with
: each knock, until it eventually sounds like you were clicking on a
: solid chunk of rock? Can any of you science types explain this
: phenomenon?
|
N****f
发帖数: 25759 | 5 Just tried that, and there is no change in the pitch in that process.
It was that high-pitched sound before and after. Maybe that's a
clue for those of you who understand this kind of matters?
【在 s*******s 的大作中提到】
: 热传导？
: 下回用冷mug装冷水放微波炉一起加热后，再敲试试
|
m*******o
发帖数: 4113 | 6 狼兄钻研
【在 N****f 的大作中提到】
: Have you ever knocked on the bottom of a cylindrical ceramic mug
: with a metal teaspoon right after pouring hot water in the mug? If
: so, have you noticed how the tone of the sound it makes rises with
: each knock, until it eventually sounds like you were clicking on a
: solid chunk of rock? Can any of you science types explain this
: phenomenon?
|
N****f
发帖数: 25759 | 7 呵呵，只不过是每星期六、星期日早晨在家冲咖啡时都忍不住敲它一通，
但一直不知其中奥妙，特来求教。
【在 m*******o 的大作中提到】
: 狼兄钻研
|
