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全部话题 - 话题: enegry
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m******x
发帖数: 918
1
Given two photons, one goes around the earth to north and another to south,
you stand on the earth and their relativity speed is defintiely 2c.
"Invariance" is only a math concept to make it conveneint to compute "enegry
".
s*x
发帖数: 8041
2
hehe,你这还是在伽利略变换的框框里

,
enegry
T*U
发帖数: 22634
3
靠,初中毕业的来了。

,
enegry
s*x
发帖数: 8041
4
呵呵

,
enegry
S*****n
发帖数: 4185
5
pure potential enegry shall not contribute to GRAVITY mass.
But of course, in a chemical system, potential energy to electrons ==
dynamic energy, which is principally a relativity term.

needed]
atoms
increases
change
.[
b**********g
发帖数: 2012
6
albany,ny的那个点
做energy方面的,好像在招人,不知道形式怎么样
w*******y
发帖数: 60932
7
Lots of great natural sodas.. juices boxs for kids lunchs..
or enegry dirnks for me.
order 25 bucks and free shipping
30% off when you combine with subsribe and save and use code HANS7764 at
check out.
Link:
http://www.amazon.com/gp/feature.html/ref=amb_link_353883082_20?ie=UTF8&docId=1000576141&pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-4&pf_rd_r=15D4PXMV1Z389S31ZZAV&pf_rd_t=101&pf_rd_p=1273729722&pf_rd_i=52129011
b**********g
发帖数: 2012
8
来自主题: _Renewable_Energy版 - 谁给说说现在工业界renewable enegry都做些啥
fuel cell前几天挺火的,最近好像没有啥声音了
wind turbine,现在炒的挺火,paper一搜一大堆,不知道工业界concern是啥
solar不太了解,貌似很火
还有啥,谁给说说
m******y
发帖数: 2207
9
来自主题: _Renewable_Energy版 - 谁给说说现在工业界renewable enegry都做些啥
solar在工业界一直很火
多是photovotaic
储氢工业应用多的是电池,大家都知道的是NiMH
x***i
发帖数: 61
10
来自主题: _Renewable_Energy版 - 谁给说说现在工业界renewable enegry都做些啥
感觉最近一窝蜂的去做锂电池去了,什么fuel cell,solar cell都没人关注了。毕竟
人家最接近实用了。
m******y
发帖数: 2207
11
来自主题: _Renewable_Energy版 - 谁给说说现在工业界renewable enegry都做些啥
锂电池是一种中间产品,只能说主食不够了,拿红薯充充饥
由于自身能量密度和锂价格的问题,它有明显的局限性
b******3
发帖数: 183
12
来自主题: _Renewable_Energy版 - 谁给说说现在工业界renewable enegry都做些啥
因為目前就以鋰電池能以最小的空間儲存最高的電量!當然這些均需考量在成本及穩定
性的條件下!!
b******3
发帖数: 183
13
来自主题: _Renewable_Energy版 - 谁给说说现在工业界renewable enegry都做些啥
燃料電池!太陽能電池這兩項是非常好的未來需求產品!但是以目前的條件下!困難度還
是蠻高的!!
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