I saw that demo in quot;the universequot; so my set up is this:use cardboard and aluminum foil tape and cut up two slits and make it parallel with the other without the two slits and use light bulb instead of laser pointer? i need help for this? thanks
i was gonna say the mentos bombi can't think of anything else too immediately exciting, but if you put an egg in vinegar and leave it there overnight or for a couple days something weird happens to the eggit's called rubber egg trickhope to get some explosive ideas myself.
Well do you just want to blow out a couple of windows? Or do you want to blow YOURSELF up?
Why not electrolyzing the water to get Hydrogen gas? I did it once and gathered about 250ml of H2, when I ignited it; the sound was so loud that the neighborhood thought that a bomb went offAll of them were outside looking for the terrorists! Now that was fun! Simply but two electrodes in water and connect them to DC power supplyThe one that has more bubbles releases H2.
The lines forming your double slit must be close togetherthey should be less than 0.5 mm ( half a millimeter )Closer if possibleThis will be hard to do with aluminium foilThe usual way is to paint a piece of glass with graphite paint ( very black ) and then score ( scrape ) a pair of parallel lines in the dry paint with a pair of razor blades clamped togetherThendo you want to display the interference fringes or just observe them? To display them you must have a bright, coherent light sourcethat means using a laserTo use an ordinary bright light ( eg a projector ) you would have to make the light coherent which you do by first passing the light through a single narrow slitBut doing that makes the light very faint so that you can only observe the resulting fringes if the observing screen is kept in some very dark spaceYou can see the fringe with ordinary light if you hold the double slit close to your eye while looking at your light sourceyour eye lens will do the focussing for you and coherence of the source isn't needed as each radiating point fo the source acts as a separate sourceThis way of looking at the fringes is quite dramatic.it works best if the light source is a linea light bulb with a straight line filament,,,, and it is the filament you need to look atyou won't see anything if you use a pearled bulb.
