The ESL bulbs generate light by firing electrons to stimulate phosphor, and the whole setup is encased in normal light-bulb glass.
在普通的电灯玻璃管内，ESL灯通过向内置的荧光粉发射电子而发光。
An incandescent bulb, made of a wire filament encased in glass, emits only 5% of the energy it consumes as light; the rest is wasted as heat.
由灯丝封装在玻璃里而制成白炽灯，只有5%的能量被用于发光；其余都以热能被浪费掉了。
In 1840, James Bowman Lindsay put a platinum filament into a glass bulb and removed most of the air so that the filament wouldn't oxidize, and thus the first working light bulb was created.
1840年，James Bowman Lindsay将铂金细丝放入玻璃灯泡，并抽走所有的空气以防止铂被氧化，这样第一个工作的电灯泡被创造出来了。
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