How to make a hole in a glass bottle without a grill?

I'm guessing you meant drill. This probably won't work, but it popped into my head: fill with a very small amount of water, so that when you tilt it 45 degrees, that water is approx the size of the hole you want. Freeze the water, then give it a firm smack with a hammer on that spot, while holding the bottle steady with a gloved hand.

I would think if you hit it with the right amount of force, the frozen water section you could break that area without the rest.

 

I'm pretty sure freezing glass will only cause it to get weaker, since it would technically contract. Are you thinking the frozen water behind it will be like a barrier to this contraction, so when he hits it with the hammer the ice will sorta absorb the shock instead of spreading it through the glass?

 

Google!

 

correct me if i'm wrong, but since a glass bottle is a solid, isn't it technically already frozen? it just has a higher melting point than water so it's a solid at room temp rather than a liquid. as for the op, even with a drill i imagine it would be very difficult to cut a hole in the bottle without cracking it.

 

No. Glass is technically what's called an amorphous solid. It resists state changes or extreme element changes by either contracting or expanding, which causes it to become brittle.

 

underwater


[ame=http://www.youtube.com/watch?v=6hixNlOQD_U]YouTube - Drilling a Hole in Glass[/ame]

 

^^^ he said without a drill

 

you could cut the bottom off w/ this method, can't get holes without a drill man

[ame="http://www.youtube.com/watch?v=_A4J7RcdsfM"]YouTube - How To Cut A Glass Bottle Using A String[/ame]

 

You could try

 

Most people use Sobe bottles when they want to make a waterfall without a drill.

See around 0:50 - that little indentation on the bottom can be broken out without shattering the bottle.


[ame=http://www.youtube.com/watch?v=UvDVglig9aE]YouTube - How to make a sobe waterfall bong[/ame]