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Design Sketching Class
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VERY NICE!!! I work with dinosaur bone, and that was no easy feat you accomplished with the cutting and shaping of the bone! The bone looks like Jurassic bone from the Morrison Formation in Utah, USA; about 150 million years old. It is hard and brittle.
There is a product called Micarta that uses paper, cloth, burlap, denim, etc. that is essentially made the same way, but with epoxies and resins. It is pressed flat between steel plates and left to cure. It is very popular for use as knife scales (handles). It can be very beautiful. It is very strong and can be machined and sanded to a desired shape. Easy to do at home. It is not an inexpensive product to purchase!
That is the same way that Egyptologists believed was the method for drilling a line of holes in stone in order to crack it for large blocks (e.g. Obelisks). The copper was not notched. They drove wooden stakes into each hole, and then poured water in. The wood would swell and break the stone in a straight line. The wood/water method is still used today all over the world.
Hi-He hardened the entire chisel when he quenched at its non-magnetic state (cherry red). It is now too brittle to strike with a hammer. He then softened the polished steel by heating up the blunt end and watches the color changes (tempering). When the tip, or just before the tip, reaches a straw color, he quenches it to stop the heat from conducting further. This allows the chisel to be hit with a hammer (on the softened blunt end) without it breaking. From the cutting tip, the steel becomes progressively softer as it approaches the blunt end. The tip is as hard as it ever was, and there is nothing left to do to it with regards to heat treatment I hope that makes sense..
Ewe ar eggzactlie korwrecked!
For me, conventional current flow confuses things. I learned electron flow in the USAF in the early sixties. The concept of electron flow makes more sense to me because electrons actually carry a negative charge, which is a tangible. An electrically positive charge is really just a point where there are fewer electrons (a void) than the negative point. I agree that unless you are talking about actual earth ground, it tells us little. I like to think of charges as less negative, or more positive. For ex., -5VDC is positive relative to -10VDC. We had several different grounds, such as earth, chassis, vase, circuit, utility, etc. They were not always at the same charge electrically (Scary on vacuum tube circuits). I am not sure what the military teaches now.
You really cannot blame just one aspect of electric shock resulting in death. I (Current, aka amperage) times E or V (Voltage) = Watts (power). Lightning is very high voltage, but low current, so the overall power in watts is low, but it can still kill you. 120 volts at 10 amps = 1,200 watts of power and can also kill you! Think of voltage as pressure and current (Amps) as the tangible stuff like water or BBs. A BB with lots of pressure driving it will do much damage. A 2 pound cannon ball (Amps) with a relatively small amount of pressure (Volts) will also do some damage. The overall power (Watts) can be the same for both the BB and the cannon ball. Think of the damage a micro meteor traveling at 25,000 plus MPH can do to a satellite, as will a 2 pound mass going 25 MPH.
Definitely agree with other posters on burying wire at least 18". Chicken wire comes in 1" hole size also. Put some of that, or 1/2" hardware cloth, over the existing 2" wire from the ground up to 3 feet. Weasels can easily squeeze through 2", snakes too. The bottom sill should be pressure treated or redwood. Not sure why you turned the studs on edge?
One method uses a paper clip bent to form the shape of the number 7. Poke a tiny hole in the end of the egg, and then insert the short leg of the wire into the egg and then spin the long leg using a drill, or? The hole won't leak egg during boiling.
How to make a full-size lethal crossbow!
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How to observe alpha particles
Vacuum Cannon drives ping pong ball at supersonic speed