joule heat焦耳热
joule heating焦耳加热;电阻加热
1.probably shave six, seven times, so that's a total of 100,000 joules that's not bad out of a battery.
可能要刮六七次,那总共是100000焦耳,那不错了,对于一块电池来说。
2.4 times 10 to the negative 19 joules.
4乘以10的负19次方。
3.however, if you climb a mountain 5,000 feet and you do that, then the work you have to do is a million joules.
然而如果你爬山,5000英尺的山,你爬上去,那你做的功是一百万焦耳。
4.gasoline produces per gallon something like close to a hundred million joules.
每加仑汽油大约产生,一亿焦耳热量。
5.that is about 100 joules per second that you radiate 100 watts.
你每秒钟大约辐射,100焦耳——100瓦。
6.compare that with your body, which generates a hundred joules per second every second 100 watts.
这和你的人体相比较,人体每秒发出一百焦耳,每秒100瓦。
7.so for every photon we have 2.84 times 10 to the -19 joules.
每一个光子有,2,84乘以10的- 19次方焦耳。