What would New Year's Eve be like without explosives? These tiny party poppers have just enough explosives to shoot some streamers out of a small container.
Here is a plot of the position of a streamer as it comes out of the popper. The streamers leave with a velocity of about But notice how the slope of the position graph decreases towards the end. The streamers slow down because of air resistance.
At the beginning of the shot out of the popper, all of the streamers are bunched up together making them sort of like one larger object with a larger mass. As they spread out, the ratio of air resistance to mass increases and they start to slow down. I guess this is all for the best. If the streamers continued on with a high initial speed, they would fly all the way across the room.
Although the sound might be rather annoying, these party horns show some cool physics. The horn sound comes a vibrating plastic part in the mouth piece. It might look something like this. The small plastic piece contains two flaps that are pushed closed. When air is blown into the horn, this air pushes the flaps open so that the air flows through. That liquid mixture means more of the surface area of the bottle is being cooled.
Although all sparkling wines have a tab to help open the bottle, most of the time the tab fails to make its way around the bottle leaving an ugly mess of excess foil. Cutting the foil creates an even, clean line around the bottle so that once the foil is removed, the cork and cage are exposed. Pro Tip: If the wine was in an ice bath, ensure the bottle is dried off so the bottle doesn't sleep out of your hands.
Fold a napkin or kitchen towel lengthwise and put it over the cage and the cork. This creates another measure safety that can help prevent the cork from flying off like a bullet. Safety is paramount when opening sparkling wine since the pressure behind the cork is around 90 psi.
To put this into perspective, that's three times the pressure of most car tires. It's best to hold the bottle at a degree angle. Untwist the "O" six times and then loosen the cage all the way around the bottle. Once the cage is loosened, begin to extract the cork by keeping pressure around the cork and twisting the bottle. I promise that my intentions are not to scare you away from drinking Bubbly, you are just as much likely to suffer injury from toppling vending machines, stray golf balls or car park security barriers… As with everything you do in life, take care and maybe when you open that next bottle of bubbly, remember that in fact you are holding something that might cause you or someone else a bruise or two!
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Death by Champagne? Maybe just a load of twaddle with the odds of it happening more than you or I winning the lottery, but let us look at some facts on why Champagne or any other bottle of sparkling wine should at least get our upmost care, consideration and respect: Yes, people are killed by flying Champagne corks! Latest big news in this area was Dingxiang Loeng , Chinese business man, who was killed after being hit on the temple with a cork from a bottle of Champagne.
Approx two dozen people are killed by Champagne corks each year with weddings the most common place this happens. A cork can leave a bottle of Champagne at a speed of 55 MPH and that is enough to smash through a Champagne glass, smash the face of your mobile phone or your spectacles too!
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