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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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DIY 45 foot cannon
Check out the video of the test firing.
http://venturebeat.com/2014/02/08/gu...-his-backyard/ I hope this guy can pull it off. Best Regards Tom. -- http://fija.org/ |
#2
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DIY 45 foot cannon
On Fri, 14 Feb 2014 00:34:53 -0800, "azotic"
wrote: Check out the video of the test firing. http://venturebeat.com/2014/02/08/gu...-his-backyard/ I hope this guy can pull it off. Best Regards Tom. Years ago a guy had a contract with the Navy, I believe, to use a cannon to launch research devices into space. As I remember it was several times cheaper then using rockets. I don't remember the guy's name but he later had a contract with Iraq to build a super cannon and was assassinated in Belgium, allegedly by the Israeli Secret Service. -- Cheers, John B. |
#3
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DIY 45 foot cannon
On Fri, 14 Feb 2014 18:45:03 +0700, John B.
wrote: On Fri, 14 Feb 2014 00:34:53 -0800, "azotic" wrote: Check out the video of the test firing. http://venturebeat.com/2014/02/08/gu...-his-backyard/ I hope this guy can pull it off. Best Regards Tom. Years ago a guy had a contract with the Navy, I believe, to use a cannon to launch research devices into space. As I remember it was several times cheaper then using rockets. I don't remember the guy's name but he later had a contract with Iraq to build a super cannon and was assassinated in Belgium, allegedly by the Israeli Secret Service. http://en.wikipedia.org/wiki/Gerald_Bull -- Unka' George "Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants, but debt is the money of slaves" -Norm Franz, "Money and Wealth in the New Millenium" |
#4
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DIY 45 foot cannon
On Fri, 14 Feb 2014 08:36:00 -0600, F. George McDuffee
wrote: On Fri, 14 Feb 2014 18:45:03 +0700, John B. wrote: On Fri, 14 Feb 2014 00:34:53 -0800, "azotic" wrote: Check out the video of the test firing. http://venturebeat.com/2014/02/08/gu...-his-backyard/ I hope this guy can pull it off. Best Regards Tom. Years ago a guy had a contract with the Navy, I believe, to use a cannon to launch research devices into space. As I remember it was several times cheaper then using rockets. I don't remember the guy's name but he later had a contract with Iraq to build a super cannon and was assassinated in Belgium, allegedly by the Israeli Secret Service. http://en.wikipedia.org/wiki/Gerald_Bull I hope the new guy winds up better than Bull did. -- "You guess the truth hurts? Really? "Hurt" aint the word. For Liberals, the truth is like salt to a slug. Sunlight to a vampire. Raid® to a cockroach. Sheriff Brody to a shark Bush to a Liberal The truth doesn't just hurt. It's painful, like a red hot poker shoved up their ass. Like sliding down a hundred foot razor blade using their dick as a brake. They HATE the truth." --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com |
#5
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DIY 45 foot cannon
On Fri, 14 Feb 2014 08:36:00 -0600, F. George McDuffee
wrote: On Fri, 14 Feb 2014 18:45:03 +0700, John B. wrote: On Fri, 14 Feb 2014 00:34:53 -0800, "azotic" wrote: Check out the video of the test firing. http://venturebeat.com/2014/02/08/gu...-his-backyard/ I hope this guy can pull it off. Best Regards Tom. Years ago a guy had a contract with the Navy, I believe, to use a cannon to launch research devices into space. As I remember it was several times cheaper then using rockets. I don't remember the guy's name but he later had a contract with Iraq to build a super cannon and was assassinated in Belgium, allegedly by the Israeli Secret Service. http://en.wikipedia.org/wiki/Gerald_Bull Yup, that was the guy. -- Cheers, John B. |
#6
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DIY 45 foot cannon
http://www.popsci.com/technology/art...supplies-space http://en.wikipedia.org/wiki/Space_gun I've read about this stuff before. It seems like a good idea, but the consensus seems to be that "it (is) impossible to reach a stable orbit without an active payload which performs orbital correction burns to change the shape of its orbit after launch." So, the payload would have to have thrusters and delicate instrumentation but still be able to survive a 5000 G launch. Sounds difficult. Considering though the cost of conventional rockets and the orders of magnitude emissions reduction of using a cannon, this is a nice idea. |
#7
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DIY 45 foot cannon
On Tue, 18 Feb 2014 04:28:53 -0800 (PST), robobass
wrote: http://www.popsci.com/technology/art...supplies-space http://en.wikipedia.org/wiki/Space_gun I've read about this stuff before. It seems like a good idea, but the consensus seems to be that "it (is) impossible to reach a stable orbit without an active payload which performs orbital correction burns to change the shape of its orbit after launch." So, the payload would have to have thrusters and delicate instrumentation but still be able to survive a 5000 G launch. Sounds difficult. Considering though the cost of conventional rockets and the orders of magnitude emissions reduction of using a cannon, this is a nice idea. How would anyone get a shot out through the miles-deep trash in Earth's orbit nowadays, anyway? /rhetoric -- The most powerful factors in the world are clear ideas in the minds of energetic men of good will. -- J. Arthur Thomson |
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