Thread: Interesting, Odd or Funny Pics II.

Originally Posted by Gav 110

Or dry ice and water in a coke bottle

We used Carbide + Water.

Originally Posted by 1950landy

As kids we had fireworks guns made from galv water pipe threaded one end with screw on cap with small hole for tupans bunger wick to come through . we would drop a marble in the other end & light the wick . Marble would go through two sides of a 44gal drum . We were young & stupid back then . I had a potato gun also , you would push the front of the gun into a potato & it would fire a plug of potato about the size of a rubber on the top of a pencil , think it worked on water pressure because it was also a water pistol. All I know if you got hit with the potato pellet it hurt & left a bruise.

Very similar to us - except that rather than the bunger we used powder salvaged from disassembled bungers. Only used it to shoot into an earth bank.

Originally Posted by JDNSW

Very similar to us - except that rather than the bunger we used powder salvaged from disassembled bungers. Only used it to shoot into an earth orbit.

Fixed it for you.

Originally Posted by 4bee

We used Carbide + Water.

Sounds like chlorine and brake fluid

Carbide??
Is it calcium carbide?

Out of curiosity, for a “friend” where would one pick up a small amount for a “science experiment” (expanding coke bottles)

Sulphur and zinc dust rockets?

Carefully 'packed' propellant in a metal bike pump tube with screwed on metal fins, launched from a vertical metal tube with a wick made out of tissue paper twisted with S & Zn inside.

Chlorine and caster sugar smoke rings?

DL

Maybe we need another thread
Science Experiments

Originally Posted by Gav 110

Maybe we need another thread
Science Experiments

With a name like 'My Aim the Sky' and the qualifier 'but sometimes I hit London' (apologies Werner).

Where it's mandatory that each thread (thesis) has detailed outcomes and ends with 'requires further investigation' whether it worked or not.

A list of bogus "beneficiaries' at the start and a list of 'sponsors' at the end.


I used to review this sort of stuff (real pre-proposals and full blown) and get well paid for it back in the day. Should write a book about some of the BS I saw.

DL

Originally Posted by Gav 110

Sounds like chlorine and brake fluid

Carbide??
Is it calcium carbide?

Out of curiosity, for a “friend” where would one pick up a small amount for a “science experiment” (expanding coke bottles)

I suppose it must have been, I never heard the name Calcium in connection to this. Small bits of something grey in colour packed into a Bex Bottle containing a little water & top screwed down & then thrown.


I can't recall where it was obtained from it just turned up. CIG ( Now Liquid air?) Carba dry ice? Was it acetylene ? No idea. Carbide was used in old Cycle & Car Lamps.

I see it can be used for fruit ripening as well as a base for Acetylene
It was approx. 75 years ago. Have never given it another thought since then.


Apparently is Illegal to use acc. Gargle.

Calcium Carbide Suppliers Australia