h a l f b a k e r yRecalculations place it at 0.4999.
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The following is a practical idea which does not contain irony or jest.
Sorry.
Problem is I know my power is going to go out. Here in the colonies it's
79 degrees (freedom units) and its 8:30 pm. The AC's are going to
overload the grid. Emergency lighting would be prudent. My solution;
screw in LED bulbs with a built in battery cell. The bulb would keep the
cell charged whenever lit maintaining a healthy float charge. Connected
to the neutral wire is a RF microcontroller. I'm going to assume you all
remember x10 home automation and how that all worked. This bulb
uses RF over home wiring to transmit the signal to activate the
emergency lighting. Only 1 or 2 of the LED's would need to activated and
not even full power. Just enough to see in emergency situations. The
signal is generated by a transmitter plugged into any outlet in the house
that is un-switched. When you lose power the transmitter sends out the
signal and all of your emergency bulbs activate. Could be 1 or 100's of
bulbs.
Shower idea
https://www.lightin...d_Shower_Light.html
[whatrock, May 27 2020]
[link]
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Curious [kdf], the bulb will somehow know the electrical
difference between being shut off at the switch and
being shut off at the distribution station? In either case
nothing is coming down the hot wire...? |
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Here in the southern hemisphere it's winter now, but late
last summer I had a battery installed to work with my
solar panels. Result - on a hot day/night, the battery
supplies the house until after 10:00 pm, so that (a) we're
no longer contributing to the load on the grid until things
have cooled down and (b) if the grid needs to take a
moment, we can afford to be a bit more relaxed about it.
(Actually, we don't yet have it configured to support the
"work-in-isolation" mode, but, based on current plans
from the utilities, our grid is likely to be stable until
2023, by which time I will have that configuration added). |
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That carbon lattice extending sockets, doesn't seem so far off. |
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kfd - Thanks. Its been awhile since if contributed and I forgot the google first rule |
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But when not in the shower the original idea would
certainly beat a flashlight. |
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