I can't argue with that. It's a lot easier for Uncle Sam and businesses to track our spending if we have to use plastic.
Electronics being what they are, it is a lot easier to design a module for vending machines that can authenticate coins of varying sizes and...
You want to redesign/overhaul US coinage? Here's my idea for US coinage. (This idea won't be accepted, not in a million years) Get rid of the...
I don't think this coin was used for a button. I think if it had been, the goober who made the holes would have at least attempted some amount of...
I'm going to make a wild guess and say it looks vaugly like someone was attempting to do EDM (electrical discharge machining) and was using that...
Regarding dimmers: Well, it's complicated. (Here's the very abridged Cliff's Notes version that skips over LEDs being current devices) Often...
I'd probably use lead free pewter. The pour temperature is only ~550 degrees F. Get an old hot plate at a garage sale and set it up outside to...
The very first image in the opening post (clips3.jpg) the middle cent has a serrated edge. This was made by passing a rounded edge file over the...
Yep, you got me. Guess my spellering was going off like a loose canon :-)
Those pictures look pretty good to me! I'm guessing the desk lamp you used is either LED or compact fluorescent, since you are lacking the reds...
The nice thing about Hank and John Green is that they tend to site their sources. If you check the video's description you will find sources for...
This guy lays out the situation pretty well: [MEDIA]
Yes, rounding already occurs. Next time you buy gas, look at the price you are paying per gallon. I'll bet the last digit is 9/10 of a cent....
I imagine the speed at which coins are struck also matters. Don't we strike cents at about 700 per minute these days? Unfortunately, when you...
Re. Focus Stacking: Thanks Dave.
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