We don't have too much too say about this amazing video from Diginfo News, other than - machinery. Wow.

The clip from the Japanese news channel shows three supremely synchronised Mitsubishi Electric gears spinning at 4,500 rotations-per-minute (RPM), about to interact perfectly.

The gears are about to cross paths, interlock, combine and pull apart with no interruptions - or devastating mechanical failures - because they are so well synchronised. The system was showed off at the Ceatec 2013 show in Japan.

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  • Dog Restrainer

    If you're not trying to cut your dog in half, you have no business using this device. What's wrong with a good, old-fashioned leash?

  • Baby Cage

    Does your baby take up too much space? Is it too stinky? Thankfully, there's <a href="http://www.time.com/time/specials/packages/article/0,28804,1991915_1991909_1991746,00.html">this baby cage</a> that allows you to suspend it out your window! (Photo by Reg Speller/Fox Photos/Getty Images)

  • Noodle Eater Hair Guard

    Ponytails are so passé. The best way to keep your hair out of your noodles: <a href="http://foolishgadgets.com/200901/noodle-eaters-hair-guard/">masks made out of paper plates</a>.

  • Cigarette Rain Guard

    Because sometimes it's raining so hard that even your <a href="http://gizmodo.com/5039920/cigarette-umbrella-keeps-tobacco-torch-dry">cigarette needs an umbrella</a>.

  • Self-Stirring Mug

    Can you get any lazier? Credit: <a href="http://www.thinkgeek.com/product/cf68/">ThinkGeek</a>

  • Face Protectors for Snow Storms

    For all of those times when a hat isn't enough to keep you warm, you can look like one of those <a href="http://www.coolest-homemade-costumes.com/coolest-the-maitlands-from-beetlejuice-costume-51.html">creepy monsters from Beetlejuice</a>? Credit: <a href="http://www.flickr.com/photos/nationaalarchief/4193509756/sizes/o/">Flickr</a>

  • Neck Cleaner

    "Five-year-old Tim Gregory wears, under protest, a brush that cleans a child's neck without the use of soap and water in Los Angeles, Calif., Jan. 12, 1950. The plastic collar brush will dry-clean the youngster's neck thoroughly as he plays. The brush was developed by the Los Angeles Brush Corp. at a mother's suggestion." What ever happened to a good old fashioned bath? (h/t <a href="http://www.businessinsider.com/50-awesome-inventions-2010-9?op=1">Business Insider</a>)

  • Portable Record Player

    Sure, records player are bulky, but so are records! We're having trouble seeing the point of this one. Credit: <a href="http://www.thinkgeek.com/product/ef06/?srp=1">ThinkGeek</a>

  • Flexible Flyer Snowball Maker

    Because making snowballs is so difficult. <a href="http://www.amazon.com/Flexible-Flyer-Snowball-Maker-colors/dp/B000FJ4AD4/ref=sr_1_cc_1?s=aps&ie=UTF8&qid=1357234965&sr=1-1-catcorr&keywords=snowball+maker">Snowball Maker</a>.

  • Baby Carrier

    "Jack Milford, player with the Wembley Monarchs ice hockey team, has invented a carrying device so that his baby can join his wife and himself on the ice." Ice skating is more important to this man than the safety of his child. (h/t <a href="http://byutv.org/seethegood/post/The-10-worst-inventions.aspx">ByuTV</a>)

  • Personal Sauna

    An <a href="http://byutv.org/seethegood/post/The-10-worst-inventions.aspx">effective way</a> to roast yourself to death. (Photo by Yale Joel/Life Magazine/Time & Life Pictures/Getty Images)

  • Baby Mop

    At least the baby will have a great immune system after some time being used as a mop and <a href="http://www.betterthanpants.com/baby-mop.html">bathing in dirt</a>.

  • Double Ended Pipe

    For when you and your friend want to <a href="http://all-that-is-interesting.com/bizarre-inventions">conserve tobacco</a> while also sharing a tender moment.

  • QuikPod Handheld Convertible Tripod

    For the <a href="http://en.wiktionary.org/wiki/selfie">"selfie"</a> addict with short arms. <a href="http://www.amazon.com/Quik-Pod-QP-EHHT-Handheld-Convertible/dp/B000NPCI9I/ref=sr_1_1?ie=UTF8&qid=1357233759&sr=8-1&keywords=quikpod">QuikPod</a> Handheld Convertible Tripod. (Amazon)