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classicman 03-15-2015 08:33 PM

Quote:

These bulbs flicker a little bit.
AAAAAAAAAAAAAAAAAAAAAArrrrrrrrrrrrrrrgggggggggghhhhhhhhhhh!!!

Shoot me now! /head twitch/

xoxoxoBruce 03-15-2015 11:07 PM

I hardly notice what with the room spinning and me trying to hang on to the floor.

Gravdigr 04-17-2015 04:35 PM

1 Attachment(s)
Carpaltunnelnomore!!!!!

Attachment 51172

glatt 04-18-2015 11:38 AM

4 Attachment(s)
Quote:

Originally Posted by glatt (Post 923356)
These bulbs flicker a little bit.

Quote:

Originally Posted by classicman (Post 923678)
AAAAAAAAAAAAAAAAAAAAAArrrrrrrrrrrrrrrgggggggggghhhhhhhhhhh!!!

Shoot me now! /head twitch/

Quote:

Originally Posted by xoxoxoBruce (Post 923687)
I hardly notice what with the room spinning and me trying to hang on to the floor.

I broke down and bought an oscilloscope. Not a real one, but a cheap PC based one. And I'll be damned if it doesn't do a spectacular job. At least on this.

I hvae a solar panel I've been storing for a rainy day (*snicker*) and I hooked it up to the scope last night.

Measured various light sources and the voltage they generated in the solar panel.

An incandescent bulb is a nice steady light source. This was the refrigerator light, the only old fashioned incandescent bulb I could easily find without dragging my laptop and USB wires and probes and stuff all over the house.
Look how steady that light output is! (You are looking at the blue horizontal flat wave line in comparison to the red zero horizontal line.
Attachment 51179

And below is the traditional four foot long fluorescent light on our kitchen ceiling. It cycles 120 times a second, but it doesn't lose much of a glow in between each cycle, so it's a pretty smooth light source.
Attachment 51180
The under cabinet LEDs shown below are connected to a fairly complex power supply and special dimmer that cycles them over 600 times a second, so they don't appear to flicker. And they never dip too low either so they go Bright/Not so bright 600/sec and look fine.
Attachment 51181
And that brings us to the dining room LED lights shown below. They flicker 120 times per second, just like the kitchen fluorescent, but they turn almost completely off in between each cycle. It's visible.

Just look at these!
Attachment 51182



I

fargon 04-18-2015 12:42 PM

kool

Gravdigr 04-18-2015 02:13 PM

Quote:

Originally Posted by glatt (Post 926208)
I hvae a solar panel I've been storing for a rainy day (*snicker*)...

Yeah, that's doing it wrong, alright.

;)

Gravdigr 04-21-2015 04:34 PM

2 Attachment(s)
No, it doesn't come w/safety glasses...

Attachment 51213


...but, at least you'll know how long you've been waiting in the ER.

Attachment 51214

DanaC 04-21-2015 05:00 PM

I want both of those things.

fargon 04-22-2015 05:16 PM

I like the watch.

Gravdigr 04-29-2015 02:48 PM

1 Attachment(s)
Attachment 51309

BigV 04-29-2015 03:13 PM

heh. so you can have a picture of shooting them in the back?? "fleeing criminals" "worked by gun's trigger".

heh.

xoxoxoBruce 04-29-2015 04:49 PM

Hope the perp is running backwards. :rolleyes:

glatt 04-30-2015 11:10 AM

2 Attachment(s)
It may not exist as a product yet, because it appears to be in development, but I give you the Selfie-Arm.
Attachment 51315
Attachment 51316

Undertoad 04-30-2015 11:31 AM

WHO TOOK SECOND PICTURE

Lamplighter 04-30-2015 11:53 AM

Quote:

Originally Posted by Undertoad (Post 927130)
WHO TOOK SECOND PICTURE

The amputee that lost his camera, too.


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