DAWN TO DUSK NEWS: Newspaper bottle opener

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Scientific tricks :: 
Got a non-twist crown cap bottle but can't find a bottle opener 
anywhere? No worries! Master this party survival trick and you'll save 
the soiree, rescue the rave and become a barbecue hero. 
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiQYBclSDpS7PozXgv5VyhWd6tDOu0x3v9WbLhS0uUJ-2CJ3Ta77AtWoKdrD_nUoeiHhDiQygZFP9zphFwWzl8ixtcURodIssOpkSfU_JZSJZduWa9ym1M-N67_X2WKwb7K1kiLJhyBZJT/s1600/r1235053_16320241.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiQYBclSDpS7PozXgv5VyhWd6tDOu0x3v9WbLhS0uUJ-2CJ3Ta77AtWoKdrD_nUoeiHhDiQygZFP9zphFwWzl8ixtcURodIssOpkSfU_JZSJZduWa9ym1M-N67_X2WKwb7K1kiLJhyBZJT/s1600/r1235053_16320241.jpg" width="300" /></a></div>
<table border="0" cellpadding="0" cellspacing="0" style="width: 100%px;"><tbody>
<tr valign="top"><td class="diagram"><img alt="" border="0" height="124" src="http://www.abc.net.au/science/surfingscientist/img/tricks/3941558/newspaper_01.jpg" title="" width="220" /></td>
<td class="instructions">To open non-twist crown corks, most people reach for the bottle opener. Not you. Not anymore.</td>
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<td class="diagram"><img alt="" border="0" height="124" src="http://www.abc.net.au/science/surfingscientist/img/tricks/3941558/newspaper_02.jpg" title="" width="220" /></td>
<td class="instructions">Grab two sheets of ordinary newspaper 
instead (that's a total of four pages and it doesn't matter if the 
newspaper is a broadsheet or tabloid format.)</td>
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<td class="diagram"><img alt="" border="0" height="124" src="http://www.abc.net.au/science/surfingscientist/img/tricks/3941558/newspaper_03.jpg" title="" width="220" /></td>
<td class="instructions">Roll the newspaper up nice and tight. If you are doing this at a barbecue or a party, expect some raised eyebrows.</td>
</tr>
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<td class="diagram"><img alt="" border="0" height="124" src="http://www.abc.net.au/science/surfingscientist/img/tricks/3941558/newspaper_04.jpg" title="" width="220" /></td>
<td class="instructions">Bend the rolled up newspaper in half and squash the crease as tight and hard as you can.</td>
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<td class="diagram"><img alt="" border="0" height="124" src="http://www.abc.net.au/science/surfingscientist/img/tricks/3941558/newspaper_05.jpg" title="" width="220" /></td>
<td class="instructions">There will now be several stiff, sharp, pointy bits in the crease.</td>
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<tr valign="top">
<td class="diagram"><img alt="" border="0" height="124" src="http://www.abc.net.au/science/surfingscientist/img/tricks/3941558/newspaper_06.jpg" title="" width="220" /></td>
<td class="instructions">Wedge one of the sharp pointy bits under the
 crown. Move the hand holding the bottle up so the paper is pressed 
against your index finger just above the first knuckle (on your proximal
 phalange bone.) Your index finger is now the fulcrum of a first-class 
lever. Pull down with the other hand and… pop!</td>
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<td class="diagram"><img alt="" border="0" height="124" src="http://www.abc.net.au/science/surfingscientist/img/tricks/3941558/newspaper_07.jpg" title="" width="220" /></td>
<td class="instructions">Congratulations. You've just opened a bottle with a newspaper! Now go forth and be the toast of the barbie. Note:
 if you don't succeed the first time, the part of the crease you used 
will probably be torn so use a different pointy bit for your second 
attempt.</td>
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<a href="http://www.abc.net.au/science/articles/2014/02/11/3941558.htm#top">^ to top</a></div>

 
<h3 id="a">
What's going on?</h3>

 You have successfully turned an ordinary sheet of newspaper into a
 class 1 lever (the surprising strength of newspaper deserves some of 
the credit too.) Levers are one of the six simple machines every kid 
learns about in primary school but nearly all forget again before the 
end of high school. In case you've forgotten, the other simple machines 
are the inclined plane, the wedge, the wheel and axle, the pulley and 
the screw. Coming back to you yet? Quit yawning! 

 
 Levers amplify force and they're so good at it that Archimedes 
famously said: "Give me somewhere to stand, and I will move the Earth." 
He meant that, if he had a long and strong enough crow bar, he could use
 it as a lever and move planets. Oi! Pay attention!! 

 
 A lever is just a beam or a stick or a rod. Or, in this case, a 
few sheets of newspaper turned into a rod. What class of lever you have 
depends on where you put the fulcrum. This is the other bit most primary
 school kids learn to forget. The fulcrum is the point around which the 
lever rotates. A seesaw is a class 1 lever but, with the fulcrum smack 
bang in the middle, it gives you zero mechanical advantage. If you put 
the fulcrum closer to the far end, however, you can lift a heavy object a
 small vertical distance by pushing the other end down a large vertical 
distance. 

 
 Okay kids, fascinating as this is, even I can tell that's 
probably enough lever lessons for one day. If you really are that keen 
to refresh yourself with what makes a class 2 lever (think wheelbarrows)
 and a class 3 lever (think biceps lifting a dumbbell), then simply type
 "class 2 lever" into any search engine and you will be rewarded with 
more than five results (trust me, I checked!) 

 
 In the meantime, here are a few extra hints for how to open crown
 cork bottle caps with a newspaper. It helps to practice the technique 
with the thick handle of blunt butter knife or a wooden spoon so you 
won't get too frustrated when the pointy bits in your creased newspaper 
tear (once it does, you usually can't use that pointy bit again.) 

 
 Also, if you break the seal, the neck of the bottle often becomes
 wet, and in that event you'll just end up making papier-mâché. The 
lever action should not hurt your index finger at all. If it does, 
you're holding it wrong. The crown cork should come off relatively 
easily (ie not much force is required) and if it feels like there is no 
way it's going to budge… you're still holding it wrong. 
 
source :ABC.net  
 
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Newspaper bottle opener

Scientific tricks :: Got a non-twist crown cap bottle but can't find a bottle opener anywhere? No worries! Master this party survival...