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Why train wheels have conical geometry (i.imgur.com)

submitted by aloofloofah

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Coolest door latch I’ve seen. Hiroshima, Japan (v.redd.it)

submitted by patderkacz

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Things You Must Know About Injection Molding Machine (medium.com)

submitted by ado6789

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An XY adjustable optics holder made out of single piece of metal (imgur.com)

submitted by persephone11185

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110 ton ICBM silo lid opening from r/interestingasfuck (i.redd.it)

submitted by gearg777

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The Lincoln Memorial in the process of being assembled, Washington, DC, 1922 (i.redd.it)

submitted by ibkeepr

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Japanese sunrise dovetail joint (gfycat.com)

submitted by Anen-o-me

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The 1751 Machine that Made Everything (youtube.com)

submitted by karben14

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Bush? What bush?? (i.imgur.com)

submitted by Felixchink

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A-5 Vigilante dangling from the aircraft carrier. What happened here? (i.redd.it)

submitted by FerryLunchBox

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NASA’s heat and sound suppression system test (v.redd.it)

submitted by DaBrombaer

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The wacky way we almost drove - Wrist twist | Fails of Future Past (youtube.com)

submitted by inertstitials

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Great Youtube Channel (youtube.com)

submitted by kushalsehgal

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Well designed light poles [x-post from r/WeatherGifs] (gfycat.com)

submitted by DrewSmithee

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Questions about Concrete Answered - The Basics (youtube.com)

submitted by ManofTheNightsWatch

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Da Vinci style bridge (gfycat.com)

submitted by Reddit_Karma_King

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Twin Engine Dozer (youtube.com)

submitted by nicksteam

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Lockheed patent for US naval fusion reactor technology (patentimages.storage.googleapis.com)

submitted by parker9832

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Audiofiles Hate This Guy! | Styrofoam Speakers (youtu.be)

submitted by agumonkey

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Over 20 Apache helicopters stretching as far as the eye can see (i.redd.it)

submitted by FerryLunchBox

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Engineers Wanted! :) (self.EngineeringPorn)

submitted by Gio_13

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My entirely homebuilt steam engine and boiler. Spent 6 hours every Saturday with my mentor and we finished yesterday! Build time was November-March. (v.redd.it)

submitted by getoffmyblog

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The Warehouse of the Future – WITRON’s OPM Technology at Meijer in Wisconsin (youtube.com)

submitted by Rhear

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I want one (gfycat.com)

submitted by elwolf6

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Das pretty cool, but I wonder if the top (near where it bends) would get damaged if you use it a lot (gfycat.com)

submitted by elwolf6

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