Search found 1897 matches

by makc
Wed Jan 12, 2005 11:48 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

everyone wants to be The Last One.
by makc
Tue Jan 11, 2005 7:26 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Jupiter's rings
Replies: 7
Views: 9888

I have heared about some "condensation" theory of planet formation, according to that there should be rings around every planet (probably, same math, except that ring material is not made by crater-to-satellite impacts, but is simply the rest of the material satellits and planets were made...
by makc
Thu Jan 06, 2005 7:30 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

Please frogive me for not haveing time to read all 100+ pages of posts...I think this is the flash, and smoke left over from the launch of some sort of weapon...however...Why is the device not at the launch point. What could possibly move so fast that it is already out of the screen while the flash...
by makc
Wed Jan 05, 2005 6:41 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

Re: Strange streak discussion: 2004 Dec 7 APOD

Here we have a similar effect: http://antwrp.gsfc.nasa.gov/apod/ap010219.html -Dudelman. There is a problem with your image: - in our image the streak is very straight, but slightly visible, and is darker than the sky; - in your image the streak is curved, pefectly visible, and reminds me the trace...
by makc
Wed Jan 05, 2005 6:33 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Apod Dec 26 (black hole) - RJN or someone?
Replies: 6
Views: 8030

Tried to PM this, didn't worked out, message stuck in outbox

I'm trying to derive light path equation from (A1) at http://antwrp.gsfc.nasa.gov/htmltest/gi ... endix.html

From what I have
Image

it follows that there is circular orbit at any radius, which is wrong. Where is my mistake?

Thanx.
by makc
Tue Jan 04, 2005 1:50 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Image 04/01/2004 C/2004 Q2 from Gran Canaria-Canary Islands
Replies: 1
Views: 3916

I think you could work on your image a bit more (like, remove noise, etc).
by makc
Tue Jan 04, 2005 7:50 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: HoW iS tHe FeElInG oF uSiNg A tElEsCoPe To LoOk At StArS
Replies: 4
Views: 4716

I bet not as good as sex.
by makc
Sun Jan 02, 2005 6:29 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

How come people are still discussing this? I think it's mostly because they can't/won't read 137 pages of debates, so they suggest same things (both wrong AND right) over and over...

Me guilty, too :(

I think it is time to lock the thread.
by makc
Sun Jan 02, 2005 11:19 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

Re: Need for Speed II

If you can show that given a bee's body width is the width of the streak, would he have covered that distance in 1/20 sec. okay, assume the streack, 40 times longer than the bee, represents bee flight in the plane exactly ortogonal to camera axis. assume the bee is 1.5 cm long. that gives us 60cm p...
by makc
Sun Jan 02, 2005 12:06 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

Re: 2 or 4 wings?

If you can show that given a bee's body width is the width of the streak, would he have covered that distance in 1/20 sec. and what is the distance? if you want to say: the streak is 40 times longer than the bee, so it has flied 40 times more of it's own length - no, because we have to consider thr...
by makc
Fri Dec 31, 2004 7:35 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

Re: 2 or 4 wings?

Okay... To end up this discussion, I've made an image where you can actually see the bee itself , but it seems victorengel was first to achieve this level of quality for bee shape... Here are steps to re-produce image: 1. mix 50/50 before-after image, and filter it (Gaussian blur, 0.5 pix) 2. apply...
by makc
Thu Dec 30, 2004 2:05 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

In an article linked in above post, someone wrote:Remember, if you do follow up you are talking to an idiot. Treat them with the ill-respect they deserve.
by makc
Thu Dec 30, 2004 1:23 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

oh, come on! cut the crap!

Image

it's a bee! what other proves you need?
by makc
Thu Dec 30, 2004 9:51 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

Re: 2 or 4 wings?

Okay... To end up this discussion, I've made an image where you can actually see the bee itself , but it seems victorengel was first to achieve this level of quality for bee shape... Here are steps to re-produce image: 1. mix 50/50 before-after image, and filter it (Gaussian blur, 0.5 pix) 2. apply ...
by makc
Tue Dec 28, 2004 2:00 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Strange streak discussion: 2004 Dec 7 APOD
Replies: 2124
Views: 507514

Re: 2 or 4 wings?

victorengel wrote:I'm not sure how to answer this because I'm not sure where you're seeing complexity...are we not left with a relatively simple pattern?
I made some simple enhancements on this image. Don't know if it would help you to see complexity, or jpeg artifacts.
by makc
Tue Dec 28, 2004 7:45 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Apod Dec 26 (black hole) - RJN or someone?
Replies: 6
Views: 8030

The image from my above post is now wide-spread over the net, and is actually loosely cropped version of this image (see below) by J.P.Luminet; on one of his site pages you can find older, original computer-simulated image . http://lpnhe-auger.in2p3.fr/slides/vulg/TNM.gif (image removed - it's in po...
by makc
Mon Dec 27, 2004 8:08 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Apod Dec 26 (black hole) - RJN or someone?
Replies: 6
Views: 8030

Apod Dec 26 (black hole) - RJN or someone?

Though this APOD is awesome piece of digital art, it is very far from how black hole would really look like. I've seen so-called "blak hole pictures" on APOD site before, and I don't understand why so misleading and non-even-close images are published on astronomy sites over and over, and ...
by makc
Fri Nov 19, 2004 10:30 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Who is writing this comment?
Replies: 3
Views: 5021

Latest leading question "How old is this galaxy?" is three days old. I guess RJN took its "annoyance" into account ;)
by makc
Thu Oct 14, 2004 8:44 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Nice world map
Replies: 3
Views: 5223

http://antwrp.gsfc.nasa.gov/apod/ap040822.html contains link http://antwrp.gsfc.nasa.gov/apod/lib/about_apod.html#srapply that sais that NASA images are in public domain, and guidelines to use them are at http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html however, 60 words you w...
by makc
Wed Oct 13, 2004 2:04 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD Oct. 12, 2004
Replies: 1
Views: 4434

I think "in sync" is illusion caused by continuous re-play and low framerate (so things that have changed its brightness at different time inbetween are just shown in every new frame all together, and then again, and again...) For example, take two or three shots of the crowdy street with ...
by makc
Wed Oct 13, 2004 1:55 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: algorithm for meteor detection
Replies: 5
Views: 4453

...but "the only difference" is still a difference...

Plus, if there would be no, what would be need in re-inventing it? I assumed it was all about detection based on curve, and so your stuff would be "easier way to go" or something... :?
by makc
Tue Oct 12, 2004 5:57 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: algorithm for meteor detection
Replies: 5
Views: 4453

Re: algorithm for meteor detection

...comments? I have problems with english, so perhaps I've misunderstood you. Also, I come from digital image processing backgrounds (Kodak POS photo voodoo ;) ), so I will use other words here. If I understand you, you average "important" pixel values in X and then Y directions, and then...