Id be really interested to know what measure you do put in place to keep yourself safe...is there not still an element of risk? I know people tend to fear things they dont understand - Ive done A Level physics and understand, in a limited fashion, the principle of your use of the coil - but it look rather scary to me!

hmmm, I wonder if hed adopt me...

Any man who can do this
 has my respect.

Cool pics  

Ive held a good few of them, if you dont have a phobia it isnt that brave TBH, you have to be frightened for that

make me breakfast, im hungry

He didnt reply to me

I try to reply to everyone. Now bugger orf and make your own breakfast.

The website isnt that bad, dont take brummies comments to heart. Thanks for taking the time to reply to us all!  

My pleasure to spread the good word....

Would that be about 200 miles down the road?
BTW: Ita always nice to see someone from a posted site visiting here we do have some professionals but a lot of amatures that like to mouth off on things they have limited knowledge of
One of my teachers back at school built a nice coil, he accidentally dropped a 6mm ball bearing at one end of it during a lesson in which it was turned on, we never found the ball bearing but the exit hole through the window was pretty obvious.

Sorry, other side of Oz in Bunbury Western Australia 200k south of Perth.
It is interesting to see who hits my site and sometimes I follow them back.  Recently my hit count went up to 4000/day from about 6 different Spanish porn sites that included my site in the bizarre/crazy guy categories.  The babelfish translations were interesting.
Your teacher made a coilgun but its hard to do this inadvertently otherwise the bearing just gets sucked back if the power is still on.  I would suspect it wasnt an accident and that he applied power momentarily while the BB was in the barrel.
I made a coilgun last week with a 33g projectile. It worked so-so but when I put 3kJ through it it exploded. All caught on camera. Not yet on my site but posted here on 4HV with pics.

fixed

Im planning a few things in old age. Mostly be more irresponsible etc but not that. Thanks.

mmmmmm
although it does scarely remind me of a song.....
"DANGER DANGER.... HIGH VOLTAGE, when we touch....." etc  :whoops:

Safety stuff is boring but vital.
I assumed the song was ACDC but it was the Electric Six

Yesterday I made a big vortex cannon out of a compost tumbler. Lots of fun. Pics here

From page 2 (which I didnt see before)

Ive always wanted one of them since playing C&C lol.

Even the latest Tomb Raider has a Tesla coil scene in it. Also Dungeon Seige and a lot of others.

Id be really interested to know what measure you do put in place to keep yourself safe...is there not still an element of risk? ...

Yes there is some risk but some people make a career out of being electricians. Without going into great detail the important thing is knowing when the HV is present.  Easy on a Tesla coil because the sparks are loud and obvious. Lower and more lethal voltages need to be unplugged and caps discharged as a routine and a light on to indicate the danger present

cool site
I love stuff like this...
I see you have a few lifters too, they are quite cool things

I hope to make a lifter aiming for a record height sometime (amongst my 1000 other projects)

hmmm, I wonder if hed adopt me...

Only if you are warm and fuzzy and dont sh*t everywhere like our new puppy.

Any man who can do this
 has my respect.
Cool pics  

That spider was slow moving and probably at the end of his life ie geriatric.  I dont make the spiders do anything to provoke them. If they walk on my hand they do it themselves. I adjust the position of my hand to use their tendency to want to go up.  The golden orb spider was cooled off in the fridge first to slow him down a bit.

Ive held a good few of them, if you dont have a phobia it isnt that brave TBH, you have to be frightened for that

It spooked my son when a smaller faster wolf spider ran up my arm and over my head. We get lots in our house.

you ..... coulda posted a warning

I ran this through babelfish and it translated "I have a limited vocabulary, few social skills and dont like spiders"

Cheers
Peter

It spooked my son when a smaller faster wolf spider ran up my arm and over my head. We get lots in our house.

Peter

i got asked a while back to go to oz and work as an electrician, the money was amazing but the spiders/insects i could imagine coming accross put me off big time.

Quote from: Serious

Would that be about 200 miles down the road?
BTW: Ita always nice to see someone from a posted site visiting here we do have some professionals but a lot of amatures that like to mouth off on things they have limited knowledge of
One of my teachers back at school built a nice coil, he accidentally dropped a 6mm ball bearing at one end of it during a lesson in which it was turned on, we never found the ball bearing but the exit hole through the window was pretty obvious.

Sorry, other side of Oz in Bunbury Western Australia 200k south of Perth.
It is interesting to see who hits my site and sometimes I follow them back.  Recently my hit count went up to 4000/day from about 6 different Spanish porn sites that included my site in the bizarre/crazy guy categories.  The babelfish translations were interesting.
Your teacher made a coilgun but its hard to do this inadvertently otherwise the bearing just gets sucked back if the power is still on.  I would suspect it wasnt an accident and that he applied power momentarily while the BB was in the barrel.
I made a coilgun last week with a 33g projectile. It worked so-so but when I put 3kJ through it it exploded. All caught on camera. Not yet on my site but posted here on 4HV with pics.

My brother has a house in Mandurah, Western Australia, nice place from the pics. Western Australia is a huge place anyway, you could probably loose Britain there.

All I saw the teacher doing was tossing the marble up and down then dropped it by the end of the coil so I have no idea if he momenarily powered it up or nor, he certainly could have done and we would have been none the wiser, all we saw was the effect. It certainly made us all pay more attention to the lessons though!

Quote from: Serious

Ive held a good few of them, if you dont have a phobia it isnt that brave TBH, you have to be frightened for that

It spooked my son when a smaller faster wolf spider ran up my arm and over my head. We get lots in our house.

As some of the Aussie ones are poisonous perhaps thats a good thing until hes well aware of which ones are safe.

Quote from: Edd

you ..... coulda posted a warning

I ran this through babelfish and it translated "I have a limited vocabulary, few social skills and dont like spiders"

Strange but the F word tends to get edited around here, you would think they would have learned by now

 
Are real lightsabers possible?
  :mrgreen:  

Lots of techniques can project energy. In the present state none are even remotely handheld.
Last year, I started on an electron beam in air. A 200kV beam generated in a vacuum passes through a titanium window into the air and by my reckoning will pass about 6 inches. Enough current should cause some glow with air ionisation. I needed to sort out some of the vacuum technology , particularly the seal on the titanium window.
Alternatively, air ionisation by laser is possible. I need to replace the lamp to get back to full power for air ionisation on my laser but it is a very cool effect even if only in a spot.
I guess for something simple, I would used two crossed beams of flame from a butane lighter and put some 20kV across it.  Of course the heat from the butane would be far greater than the spark.
Simply blowing a spark plasma can be done and is a plasma cutter.

However, none as cool as the rotating anti proton beams of the light sabres
Peter