Circular Railgun

>>8255034
i think they call it a particle collider

>>8255034
>Why wouldn't a circular version of this work?

Not with direct contact between the object being accelerated and the rails. Dealing with the friction acting on the rails and the projectile remains the single biggest problem in railgun development.

>>8255034
Because as the projectile goes faster you need a stronger magnetic field to bend its path into the same-sized circle, so you'd need to use variable electromagnets with a ludicrously high maximum power for a ring so small and a projectile so large, assuming you want to get it going fast enough to be better than a regular gun.

google cyclotron and be amazed

>>8255121
This
The Blitzer railgun can only fire a few full-power rounds before the rails have to be replaced. The friction is so great that the surface of the rails are literally vaporized by the passing projectile, creating the plasma that makes up the muzzle flash.

Cyclotron is amazing...

But that ship... Was it out of rubber?

>>8255034
>picture for ants
>image.jpg
>no source link
>no name for or description of the device, just "this"

Starting a thread like this should result in a ban.

>>8255966
you should be able to solve this

File: Macuahuitl.jpg (6KB, 173x300px) Image search: [Google]

6KB, 173x300px

>>8255034
This looks either like a very crappy railgun or a very cool macahuitl

>>8255966
>>8255997
Forgot:
>Why can't magnets be used to make a perpetual motion machine?

>>8256133
Perpetual as in it goes on forever, or just until magnets lose their power ?

>>8256045
Final Fantasy 8: Aztec Boogaloo

>>8255930
This was true back in like 2010

Both BAE and General Atomics can get several hundred shots out of a barrel now.

>>8256310
[citation needed]

>>8257800
>Since 2005, launch energy has advanced by a factor of 5 (to 32 mega joules) with potential to launch projectiles 110 nautical miles. Projectile design is underway, with early prototype testing, component development, and modeling and simulation. Barrel life has increased from tens of shots to over 400,with a program path to achieve 1000 shots. Advanced composite launchers have been strength tested to operational levels. Physical size of the pulsed power system was reduced by a factor of 2.5 through increased energy density so the system will fit in current and future surface combatants. Current research is focused on a rep-rate capability of multiple rounds per minute which entails development of a tactical prototype gun barrel and pulsed power systems incorporating advanced cooling techniques. Components are designed to transition directly into prototype systems now being conceptualized. ONR is working with Naval Sea Systems Command (NAVSEA) and the Office of the Secretary of Defense (OSD) Strategic Capabilities Office to ensure commonality and reduce the need for expensive redesign. Developmental tests are ongoing at Naval Surface Warfare Center, Dahlgrenand NRL, along with evaluations of integration into new and existing Naval platforms.

>MARCH 26, 2014

http://www.acq.osd.mil/chieftechnologist/publications/docs/FY2015_TestimonyONR_KlunderUSNM_20140326.pdf

Page 4

>>8257813
Fuck year

>>8256146
I think anon is referring to perpetual motion machines in the sense of adding energy to a closed system (yeah I know it's not possible)

OP is referring to this thing ;
https://www.youtube.com/watch?v=zqG-TL0WnjE

A circular thing like that does work for producing motion but as soon as you try to use it like that for running something else then it doesn't work anymore.

Also as
>>8255121
said the motion usually dies out because of friction

>>8255121
WD-40

File: 5-p-064.gif (13KB, 335x182px) Image search: [Google]

13KB, 335x182px

>>8255121
>Not with direct contact between the object being accelerated and the rails

Why not design it like a slingshot?

>>8260194
Coilguns work on a similar principle, as they don't require actual contact, only proximity. Unfortunately, they are less efficient than rail designs, due to the slightly different principles involved.