Dumb question: if a copper wire bolted to aluminum wire causes corrosion, why doesn't the 90copper/10aluminum version of bronze do the same thing and corrode?
I just started looking into casting bronze (ive done some aluminum before) and it sounded like copper/aluminum is stonger/better than...
18 sq ft of solar panel generates 265 watts of electrical power. The empire state building fits 4800 panels, producing about 1.2 megawatt of power when its sunny. Say its sunny for only 3 hours a day I am nyc. Thats 3.8 Mwh a day. Times 365 days. Thats 1.4 Gigawatt hours of electricity a year...
Oh, one other caveat for the empire state building calculation: if you purchase only one rain water generator for the building, then you will need to put it on the first floor, feed it through a 1250 foot tall pipe to the roof funnel, AND you would need to STORE that water until you could run it...
Lets try the Empire State Building.
It is 87,000 square feet and 1250 feet tall.
NYC gets 45 inches of rain a year, or 3.75 feet.
This means that 87000*3.75 = 326,000 cubic feet of water falls on the Empire State Building a year.
1 cubic foot of water weighs 62.4 pounds.
which means 20million...
100 gallons of water per day, per person.
Which is roughly 800 pounds.
Say water drops 10 feet in a house from first floor to sewer.
Thats 10,000 joules a day.
3.65 million joules per year.
Or...
Almost exactly one kilowatt hour.
Worth about 12 cents.
So... probably not worth it.
I have wire wrapped 6800 and 8088 computers. It is problematic in that you sometimes get intermittent shorts or opens. Once youre ok with the design, you might tack solder all the pins and wires to keep them consistent.
Breadboarding is probably the best for debugging a design. Push parts in...
Whoops. Not quite right. Not a tilting rotary table. You need a rotary table with a 22 degree spacer under the part. The axis of the table should be straight up. The part should be on top of a spacer to tilt it at correct angle.
Everything else should work.
You could manufacture that part if you have access to manual machining
equipment including
(1) lathe with a boring bar that fits through a 4mm hole
(2) vertical milling machine, with an endmill with 70mm long cutting surface.
(3) tilting rotary table, preferably with a 3 jaw chuck.
start with a...