Search found 335 matches

by Anders Troberg
Wed Jul 27, 2011 7:16 am
Forum: Off topic forum
Topic: The mathemathics of cone design
Replies: 2
Views: 1933

Re: The mathemathics of cone design

Thanks!

I managed to do it myself, with a method quite similar to that one, although I used a slightly more convoluted method to find the angle.
by Anders Troberg
Sun Jul 24, 2011 8:28 pm
Forum: Off topic forum
Topic: The mathemathics of cone design
Replies: 2
Views: 1933

The mathemathics of cone design

I've been away from jets for a while due to other commitments, but now I'm back with a question I'm sure someone here can answer. My problem is that my pet rat Ambrose (The guys are all named after Mexican revolutionaries, due to their large whiskers. It was ither that or eighties porn stars or dict...
by Anders Troberg
Wed Mar 02, 2011 9:55 am
Forum: Off topic forum
Topic: How to build an electromagnet
Replies: 15
Views: 7072

Re: How to build an electromagnet

What you need is not a directly driven relay. You need a switch transistor which can control a larger current, and which is just controlled by the small current. Then you can drive a relay off that.
by Anders Troberg
Tue Feb 01, 2011 2:40 pm
Forum: Jet Vehicles, All Types
Topic: Jet powered Lamborghini
Replies: 5
Views: 4791

Re: Jet powered Lamborghini

Cool, that's just 20 km from my home! I hope I get a chance to see it run!
by Anders Troberg
Wed Oct 06, 2010 9:13 am
Forum: Off topic forum
Topic: Fountain installations?
Replies: 3
Views: 1861

Re: Fountain installations?

Just a quick follow up: I was unable to locate him, but in my search, I found several sites on the subject.

I'd suggest that anyone interested google for "laminar flow nozzle". There are also some videos on youtube on the subject.

Probably a cool project for next summer or so.
by Anders Troberg
Tue Sep 07, 2010 6:40 am
Forum: Off topic forum
Topic: Fountain installations?
Replies: 3
Views: 1861

Re: Fountain installations?

Thanks! It was a while since he was here, but the fact that I remembered it proves what an impression his work made on me.
by Anders Troberg
Mon Sep 06, 2010 11:17 am
Forum: Off topic forum
Topic: Fountain installations?
Replies: 3
Views: 1861

Fountain installations?

Several years ago, someone here posted some photos of a fountain installation he had made, using his own technology to create perfect, undisturbed jets of water. Well, now, I'm in a situation where I might want such an installation (depending on economical and technological requirements), but I can'...
by Anders Troberg
Fri Oct 02, 2009 11:46 am
Forum: Off topic forum
Topic: Linux glitches
Replies: 187
Views: 46624

Re: Linux glitches

If you fail to boot Linux, you might consider a reinstall. Now, before people start chucking chairs at me, let me explain: A reinstall in Windows is a big thing which is not done casually. You'll lose all software and settings, you'll have to find those pesky drivers and so on. Not so in Linux. What...
by Anders Troberg
Tue Sep 02, 2008 10:50 am
Forum: Off topic forum
Topic: Thermal Imaging
Replies: 9
Views: 3708

Re: Thermal Imaging

I've used an Olympus C2100UZ with an IR filter for taking IR images. It's extremely sensitive in the IR spectrum (it's considered by some to be the holy grail of cheap digital IR photography), so I can shoot handheld without trouble. However, it's still near IR, just outside the visible, and it's no...
by Anders Troberg
Mon Mar 10, 2008 3:47 pm
Forum: Jet Vehicles, All Types
Topic: Delta wing
Replies: 3
Views: 3142

not sure of the exact name of the site now it has been years think it was called spadplas or something had all the plans to build these things out of the realestate sign material for combat slope soaring strong as hell bounce off a tree or each other and keep flying light as too! You mean http://ww...
by Anders Troberg
Fri Sep 28, 2007 7:51 am
Forum: Jet Vehicles, All Types
Topic: Jet Dragster...!
Replies: 2
Views: 3005

Looks hot, reminds me a bit of an F-104 without wings.

Any chance of a video?
by Anders Troberg
Fri Sep 21, 2007 8:15 am
Forum: Rocket forum
Topic: High thrust water rocket
Replies: 3
Views: 3725

Ouch, that looke really dangerous. What if one of the hoses cut out before the others? The car would drop on one side, and probably smash a fireman.

Still, it's cool!
by Anders Troberg
Wed Sep 12, 2007 8:10 am
Forum: Off topic forum
Topic: AVIATION RECORD HOLDER STEVE FOSSETT MISSING
Replies: 3
Views: 2662

My guess on the situation is that there are three probable scenarios: 1. Since the emergency transmitter is not working, he landed safely due to some technical error that also prevents the emergency transmitter from working. He is waiting for a ride home. 2. Suicide. The emergency transmitter was tu...
by Anders Troberg
Wed Sep 05, 2007 6:21 am
Forum: Off topic forum
Topic: AVIATION RECORD HOLDER STEVE FOSSETT MISSING
Replies: 3
Views: 2662

Let's hope he's just out in the wilderness somewhere with a technical problem, unhurt and waiting for a ride home, and that he'll be found soon.

Wikipedia has recent news, as well as information about his achievements:

http://en.wikipedia.org/wiki/Steve_Fossett
by Anders Troberg
Tue Sep 04, 2007 5:02 pm
Forum: Off topic forum
Topic: Puppy Love
Replies: 8
Views: 4007

My sister got a pair for her dogs when she met a cat owner and they tried to get get them to get along, as a cat can easily rake across the eyes of the dog. It turned out that the dog was scared of both the cat and the doggles, but eventually they got along and now they are the best buddies. He is s...