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Landis Vinchattle
One lucky guy.
One lucky guy.

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Drinking a Prairie Peach Wheat by Thunderhead Brewing Company at City of Axtell on Untappd

Smoked chicken quarters are done!

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TIL: most bowling balls float; and it's more fun to look up photos of bowling balls to figure out their average mass than to, you know, actually go to a bowling alley...};-) " You are in a boat directly over the Mariana Trench. If you drop a 7kg bowling ball over the side, how long would it take to hit the bottom?
Doug Carter

It is a good thing you mentioned the weight, because of a very surprising fact:

Most bowling balls float.

It's true. Bowling balls all have about the same volume, so they all displace the same weight in seawater—12.13 lbs, or about 5.5 kg. But their weights vary substantially, from as little as 6 lbs to a max of 16. Only the balls that weigh more than 12.13 lbs will sink._

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A rotaxane is a 2-part molecule where one part is a ring that can rotate around the other part... but can't slip off!  

People are starting to make molecular machines with rotaxanes.  That's really cool, but let's talk about something simpler.  How do you make  a rotaxane? 

The first one was made in 1967 by two chemists named Harrison.   They used a simple but clever trick.   Say you have a bunch of molecules that react and stick together in pairs to form a bigger dumbbell-shaped molecule.  Say you let them do this when mixed with copies of some other ring-shaped molecule.  Then a few of them will connect through the ring, forming a rotaxane!

By now there are better tricks:

1) Capping: you let a rod-shaped molecule fit through a ring, and then cap it off with balls that keep the ring from sliding off.

2) Clipping: you let a short C-shaped molecule fit around the middle of a dumbbell, and then get it to close off and form a ring.

3) Slipping: sometimes at high temperatures a ring can stretch and fit around the end of a dumbbell... but at low temperatures it can't slip off.

The picture shows a rotaxane made in 1998.  The paper describing this is not open-access, and I'm too lazy to get ahold of it and find out what trick they used.  The picture was made by James Fraser Stoddart, who was kind enough to put it on Wikicommons.  You can see it here:

This article also explains molecular machines made using rotaxanes!

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This Is a Generic Brand Video:

I think it speaks for itself.

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Big changes in my life starting around six years ago, this song took me back to that time. +Nicole Vinchattle

Crap. Missed epoch time 1400000000 yesterday at 11:53AM local. It's like missing the odometer turning over in your car. 

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This thing is friggin' awesome.  Though it's much cheaper to "Just aim well."

Installing Fedora to do some testing. It has been quite a while since I've been outside the Debian family. 

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I had pondered to myself some time ago what the weight of the Internet would actually work out to.  This of course excludes the NSA databases, which bring the weight up to approximately a large German Shepherd.
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