SWD “Terminator” single shot shotgun. Built by cobray in the eighties, this hot mess of a gun fires a 12gauge cartridge by launching the bolt/barrel rearward towards a firing pin. According to those who have used one they are unpleasant shooters to say the least. The example posted here is from a firingline.com article. I found this while looking for a suitable way to build a 20 gauge zip gun, however, word has it that the ATF shut this design down due to some home gunsmiths using them to create magazine fed open bolt full auto nightmares. Check your local laws kids!!!
Earlier this morning (1 October, 2014) the Delta IV Heavy rocket for the Exploration Flight Test 1 mission was erected at Launch Complex 37. The booster has been in assembly at the Horizontal Integration Facility for the last few months. Last week, the rocket’s four major components were mated together, which I covered in this post. Rollout was delayed for a few days due to unfavorable weather at the Cape.
The Orion capsule will be mated to the vehicle once it is mated to the Launch Abort System. Last Sunday (28 September) Orion was moved from the Payload Hazardous Processing Facility, where it was fueled with propellants, to the Launch Abort System Facility for this crucial step. the spacecraft will roll out to Complex 37 near the end of this month for mating to the Delta IV, beginning integrated preflight testing. If all milestones are met without significant error, launch will take place at 7:05 AM EST, December 4th.
Some of you might have heard the term “Garand-Thumb” or “M1-Thumb”. That is the name for when the bolt of an M1 Garand slams closed on your thumb. A Garand-Thumb often occurs when you try to close the bolt on an empty magazine. To close the bolt on an unloaded M1 Garand you need to push down on the magazine follower before the bolt can close, and if your finger doesn’t get out of the way in time it’ll be caught. Often people will get a Garand-Thumb because the bolt has not been pulled fully to the rear. When the bolt is to the rear it is locked in place by the bolt catch and won’t be released until you relieve the pressure on it. However if you don’t manage to get the bolt all the way back it might rest on the magazine follower instead of the bolt-catch, and it might slam shut without warning.
High-Speed footage of a Garand-Thumb.
Here is a clip of me purposely giving myself a Garand-Thumb, recorded at 1200 frames per second. As you can see, the bolt was resting on the follower and released as soon as I touched it with my thumb.
Not being completely satisfied with the previous clip, I recorded one more. Don’t try this at home (unless you are recording it)
Here is what the clip looks like in real time, to give you an idea of how suddenly the bolt can slam shut.
SpaceX’s Dragon cargo ship arrives at the International Space Station, September 23rd 2014. German astronaut Alexander Gerst used the space station’s robotic arm to grab the capsule with help from NASA astronaut Reid Wiseman [1280x850] http://space-pics.tumblr.com/
Every day, once a day, give yourself a present. Don’t plan it, don’t wait for it, just let it happen. It could be a new shirt at the men’s store, a catnap in your office chair or two cups of good hot black coffee.