Search found 1200 matches

by Aero
Sat Dec 10, 2016 1:22 am
Forum: News
Topic: SpaceX News
Replies: 2276
Views: 475923

Re: SpaceX News

And they found a reason for the event that was NOT sabotage. That is good ...
by Aero
Sat Oct 01, 2016 5:59 pm
Forum: News
Topic: SpaceX News
Replies: 2276
Views: 475923

Re: SpaceX News

I see the grid fins but where are the landing legs?
by Aero
Sun Jul 31, 2016 2:53 am
Forum: News
Topic: SpaceX News
Replies: 2276
Views: 475923

Re: SpaceX News

Fun thing will be when the rockets start taking off, refueling while in space, then landing with enough to take off again, making the ground the stop off point, not space. Never happen with chemical fuel. The delta V to come down from orbit would be the same as the delta V needed to reach orbit so ...
by Aero
Sun Mar 08, 2015 3:48 pm
Forum: News
Topic: Hyperloop Technologies
Replies: 32
Views: 11976

Re: Hyperloop Technologies

Since we're talking about emergency pressurization scenarios, what happens if a car is speeding along and an earth quake or some other disaster rips the tube completely apart some few miles ahead of the car? The air will rush in, the speeding car will slam into the inrushing air and quickly decelera...
by Aero
Wed Jan 14, 2015 7:09 pm
Forum: News
Topic: EM Drive
Replies: 693
Views: 253513

Re: EM Drive

I wish I knew the answer. I don't. I do know that energy can not be added to an evanescent wave by increasing the evanescent wave frequency, because evanescent waves don't have a frequency. They are not propagating waves in the sense we think of, rather they are expotentially decaying waves. But I ...
by Aero
Wed Jan 14, 2015 2:10 am
Forum: News
Topic: EM Drive
Replies: 693
Views: 253513

Re: EM Drive

Okay, lets see if I can get this written out properly. Don't know half the proper terms I probably should to say this, so bear with me. If the velocity is more than C than you have to completely rewrite physics. So the "superluminal" wave is still traveling at C right? But, if you simply ...
by Aero
Wed Jan 14, 2015 12:19 am
Forum: News
Topic: EM Drive
Replies: 693
Views: 253513

Re: EM Drive

So where is the extra energy to give a "superluminal" momentum without an FTL speed? I got your math, most articles on this stuff unfortunately use the higher formulas that can't really be understood without advanced calculus and they assume you know what a lot of variables and stuff mean...
by Aero
Tue Jan 13, 2015 11:21 pm
Forum: News
Topic: EM Drive
Replies: 693
Views: 253513

Re: EM Drive

Just glancing over the piece in wiki about evanescent waves, and I don't think this can generate thrust. For one thing is is non-radiative and only occurs when a wave is reflected inside a material. The wave is therefore limited to the interior of that materials, like a waveguide; and does not appe...
by Aero
Tue Jan 13, 2015 4:53 pm
Forum: News
Topic: EM Drive
Replies: 693
Views: 253513

Re: EM Drive

That is that evanescent wave photons can, in some circumstances have superluminal momentum. What's the difference between momentum and velocity(?) here? Of course you know that momentum in general is given by p = m*v, so p is velocity multiplied by a mass. Here we are looking at a mathematical resu...
by Aero
Tue Jan 13, 2015 2:10 am
Forum: News
Topic: EM Drive
Replies: 693
Views: 253513

Re: EM Drive

How does the evanescent wave explanation answer objections that this violates conservation? Oh, I failed to mention a very important fact which has recently received considerable attention in medical sensor research and measurements. That is that evanescent wave photons can, in some circumstances h...
by Aero
Mon Jan 12, 2015 9:49 pm
Forum: News
Topic: EM Drive
Replies: 693
Views: 253513

Re: EM Drive

For the last 2-3 months I have been pursuing the possibility of evanescent waves being the source of the EM Drive effect. For those unfamiliar, http://en.wikipedia.org/wiki/Evanescent_wave An evanescent wave is a near-field wave with an intensity that exhibits exponential decay without absorption as...
by Aero
Sat Nov 22, 2014 6:17 pm
Forum: General
Topic: I'm an old timer now:(
Replies: 20
Views: 3260

Re: I'm an old timer now:(

Heh, heh, heh, well then! I'll do it for an EM drive project as well, just as long as you know I've got contacts in that area as well who might be competing with you. But then again, maybe you'd like to join them. My guru thinks that Maxwell's equations allow it, with no violation or new physics, a...
by Aero
Sat Nov 22, 2014 7:55 am
Forum: General
Topic: I'm an old timer now:(
Replies: 20
Views: 3260

Re: I'm an old timer now:(

Pinnacle Studio can make movies from a sequence of stills ... I've played with some time-lapse sequences. Its not one step, though ... it would probably take a noob a few days to figure out how that package works. It is not free, but the basic package is affordable. I own a few "trail cameras&...
by Aero
Fri Nov 21, 2014 6:05 am
Forum: General
Topic: I'm an old timer now:(
Replies: 20
Views: 3260

Re: I'm an old timer now:(

Hey guys. I just created about 300 MB sequence of PNG files output from an analysis program and I had planned to make a video of them. Problem is I don't know how. I made a .gif using Imagemagic, but that is way to large to upload and Imagemagic doesn't do movies on my system. Ubuntu Lunix. Anybody ...
by Aero
Sun Nov 02, 2014 2:45 am
Forum: News
Topic: Orbital Sciences rocket explodes on launch
Replies: 49
Views: 12548

Re: Orbital Sciences rocket explodes on launch

Do we have a thread regarding the SS2 failure in flight test? One dead, the other pilot is in critical condition.

Go to advanced search