Cut random lengths of bright filament , find a fun model , and click " build . " No kid can resist this purple and yellow stegosaurus .
对长丝削减随机长度,找一个有趣的模型,然后点“制作”,没有那个孩子能抗拒这个紫黄相间的剑龙。
To have a useful life , even the hottest quartz-halogen incandescents have to operate well below the filament 's melting point .
为了在日常生活中达到效用,连最热的石英卤素灯运行时也不得不适当地低于其灯丝的熔点。
But the carbon filament had low electrical resistance . That meant it consumed a lot more current to heat up and glow .
但是碳灯丝的电阻很小,这意味着它需要消耗更多的电流来升温和发光。
But the storms resulting from friday 's cme - which occurred after an enormous filament erupted from the sun 's surface - were minor and apparently had little impact aside from the ramped-up auroras .
The amount of energy pushed through a filament that actually emerges as visible light is around 2 percent -- most of the rest is lost as heat .
经过灯丝产生可见光的能量只占总能量的2%,余下的大部分以热能的形式丢失。
Edison realized that the bulb would need a filament that would require high electrical resistance , so that longer copper lines and lower current could be used to heat it .
爱迪生意识到灯丝需要用高电阻材料制作,这样就能用更长的铜导线和更小的电流来加热它。
This replica of an early edison product wins points for aesthetics , with its elongated shape and ribbonlike loops of carbon filament .
这个爱迪生早期产品的替代物以长条外形和带状环形灯丝在美学上赢得了不少分数。
Most of the wear and tear that causes incandescent bulbs to burn out stems from the expansion and contraction of the filament as it heats up rapidly when switched on and then cools down when turned off .
多数导致白炽灯烧坏的损耗归咎于人们开灯时灯丝的迅速升温和关灯后灯丝的冷却所产生的热胀冷缩。
His interests , however , were varied , and he decided in 1860 to make an electric light using a carbon filament inside an evacuated glass chamber .
只是那时他的兴趣发生了变化,1860年他决定要做电灯泡,方法是将碳灯丝放入真空玻璃室内。
Apart from the tiny current trickling through its filament , the secret of the centennial light 's long life is that it has rarely been turned off .