Explain this: all the door handles on all the floors in this chilly stairwell are warm to the touch. They were this way yesterday too.
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Replying to @JakeGoulding
@JakeGoulding electronic locks or even just emergency locks that open during fire alarms (via magnets) will often do this.2 replies 0 retweets 0 likes -
Replying to @mattmoehr
@mattmoehr also, why would the magnet ones be warm?1 reply 0 retweets 0 likes -
Replying to @JakeGoulding
@JakeGoulding electro-magnets keep the door shut, power goes off, they release, open the doors. the constant low voltage creates some heat.2 replies 0 retweets 0 likes
Replying to @mattmoehr
@mattmoehr yes, the wall side makes much more sense, but there's one open door that is also warm.
3:43 PM - 15 Apr 2014
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