MovieChat Forums > The Day (2012) Discussion > What was powering the alarm?

What was powering the alarm?


There was no electricity, and it's unlikely that any battery would have held a charge for ten years or more with being recharged.

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Tension springs... just like an old wind up alarm clock.
Obviously the cannibals kept the trap maintained.

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it's unlikely that any battery would have held a charge for ten years

Wrong.

Disposable (or "primary") batteries typically lose 8 to 20 percent of their original charge every year at room temperature (20°–30°C). This is known as the "self discharge" rate, and is due to non-current-producing "side" chemical reactions which occur within the cell even if no load is applied. The rate of the side reactions is reduced if the batteries are stored at lower temperature, although some batteries can be damaged by freezing.


I personally have two batteries working the clock for 11 years now. the clock still works and is not late (well 3 minutes late per year, thats normal). It well preserved and kept in good condition batteries COULD work.


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Applied Science? All science is applied. Eventually.

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8 to 20% of ORIGINAL charge?

Then they will be flat in 5 to 12.5 years

oh ,now i did the maths i 'spose it possible.

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Aren't modern smoke alarm batteries 10-year batteries? Obviously after those were used up, no one would have been making more so I suspect n8urst's suggestion of a windup mechanism is more likely.

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Forget what was powering it I was yelling at the screen to shut it off before it draws everything from the countryside towards them. LOL A tense moment in the movie for sure among other very interesting moments. Again I can't understand how this only made $20K in theaters.

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Yes that's what I was thinking. Should've looked for the alarm and broken it down

Clark: 'Jonathan Kent; isn't it a little past ur bedtime?'

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Again I can't understand how this only made $20K in theaters.

A limited release killed it.

I wanted to see it, but would have had to drive to another state or hours away at least. I had to wait for video.


Sleep peaceably at night because rough men stand ready to do violence on your behalf.

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