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JacBille
Приєднався 28 кві 2007
So far this channel is about me, science and medieval reenactment.
Fysik- og kemishow Landsmøde Aalborg
Konkurrencekørsel af "Plasmahesten"
Otte 1,5 L sodavandsflasker halvt fyldt med vand, godt med tryk fra cykelpumpe, to dyser til affyring af vandet... ingen bremser!
Otte 1,5 L sodavandsflasker halvt fyldt med vand, godt med tryk fra cykelpumpe, to dyser til affyring af vandet... ingen bremser!
Переглядів: 39
Відео
Full contact medieval combat 3 (2013-03-24)
Переглядів 79311 років тому
So I was at Schloss Berlepsch in Germany with my medieval historical group to live at the medieval market the 23-24 of March. Our full contact historical combat group made an unscedueled show in the middle of the castel court yard ;-) This is a battle between Leon and Christian! The Castle: www.schlossberlepsch.de/Schloss/Bilder/360.aspx The Skt. Martin Kompagniet (our historical groupe): www.s...
Full contact medieval combat 2 (2013-03-24)
Переглядів 7 тис.11 років тому
I was at Schloss Berlepsch in Germany with my medieval historical group to live at the medieval market the 23-24 of March. Our full contact historical combat group made an unscedueled show in the middle of the castel court yard ;-) This is a battle between Asger and Christian! The Castle: www.schlossberlepsch.de/Schloss/Bilder/360.aspx The Skt. Martin Kompagniet (our historical groupe): www.skt...
The Linear Accelerator
Переглядів 50 тис.13 років тому
The equipment may be more modern but otherwise this is essentially as true today as whenever this educational movie was made.
Look at the size of that x-ray machine in the hospital!
What are iris plates
As a radiation therapist it's informative
Found this video cause i was watching people beam electrons into acrylic. Then striking it creating awesome lighting trees
Interesting. I came to this video because I was trying to learn more about how a waveguided particle accelerator would work. Now I'm wondering if NASA has thought about using something like this to accelerate ions in their ion thrusters.
they probably have. high power microwave sources developed for military radar is actually what allowed the invention of magnetrons/klystrons in the first place. without military radar medical linacs would probably be only available in high tech facilities like the heavy-ion therapies currently going on in heidleberg
@@user46346bdtgryThe Klystron is a product of SLAC national accelerator laboratory. It is still in use to some degree, but is mostly obsolete tech these days.
While I love this video, need to point out an errata: at 6.46 the apertures of the iris plates should be drawn to be DEcreasing (not INcreasing) toward the target end. The decreasing radius makes the microwaves accelerate (although it's not that clear to me how that happens... input from other viewers?) Note - this video is about "travelling wave accelerators". These are still used today for some 6 MV-only medical linacs (e.g. Varian Unique and I think also the old CL600). In 1968 (after this video was made) Knapp et al invented the "standing wave" accelerator, which allow higher energies (15-18 MV) in a reasonable length of accelerator waveguide (about 1 m).
The smaller the iris the slower the rf wave. Slow rf waves needed at the beginning because the elections are slowest there. i was impressed when the animation got that detail right.
Great film thanks !!!
3:55 And now they are into Tera elektron range with the newly uppgraded hydron collider, thats a tad more then 15 Mega electron volts.
The camera shake makes it unwatchable.
dick nose isn't to great against dick head lol
may be a resonation barrier between charge and waveform energy.. a charge would need to achieve a sine wave (thermodynamic dependance)..
Go home man! Physics is not for you !
Soooo much better than chapter 4 of KHAAAAAN! (I really wish we still used a periscope)
I was just thinking the same thing
The original film was made in the late 50's and was discovered at a local car boot sale in the Crawley area many years ago. MEL was manufacturing Linear accelerators at MItcham, London and moved to Crawley when the Industrial estate was built. MEL was eventually purchased by Elekta. Elekta are still manufacturing medical linear accelerators on the same site. We used this video for many years in the training department to describe the physics behind the accelerator. The basics have not changed in over 60 years.
Thanks for posting! I'm a Medical Physicist and I found this to be very interesting to see, and by far the best explanation for how an electron is accelerated in a traveling wave linear accelerator that I've come across.
Great technical explanation!
When science was outpacing science fiction. Nuclear physics applications to medicine aren't ever mention at anti-nuke rallies.
Whoever smashes the others neck with a shield first wins!
WHERE CAN I DO THIS!!!
This is MORE LIKE IT!
not real full contact, watch Holmgang!!!
tuziuzi Ok
A bit late to hit the like button? 2 years later? haha
If you like this, see also "From the Archives: Fabricating the Linear Accelerator"
Hehe, the x-ray tube to check pipe welds for defaults in around 10 kilograms. Wonder how heavy this stuff was once upon a day.
fantastic!! where did you get this? do you have any more like this.
which year was this made? :D i love it!