Search found 110 matches

by SsDd
Thu Aug 04, 2011 6:45 pm
Forum: The Communications Center: Breaking Science News
Topic: NASA: Important NASA News Briefing (Water Flowing on Mars)
Replies: 7
Views: 4346

Re: NASA:- Important NASA News Briefing

Remember all the wild speculation about this one: http://asterisk.apod.com/viewtopic.php?f=31&t=22146 Yes bystander, I remember it all too clearly. I will admit you are right, I will be more circumspect when reporting similar news in the future. However, a little part of me, cannot help but be ...
by SsDd
Thu Aug 04, 2011 7:53 am
Forum: The Communications Center: Breaking Science News
Topic: NASA: Important NASA News Briefing (Water Flowing on Mars)
Replies: 7
Views: 4346

NASA: Important NASA News Briefing (Water Flowing on Mars)

Sorry if this has been reported earlier, NASA will host a news briefing on Thursday, Aug. 4, at 2 p.m. EDT about a significant new Mars science finding. The briefing will be held in the NASA Headquarters James E. Webb Auditorium, 300 E St. SW in Washington. The new finding is based on observations f...
by SsDd
Sat Jul 16, 2011 10:31 am
Forum: Open Space: Discuss Anything
Topic: Light and Gravitational Fields
Replies: 8
Views: 1130

Re: Light and Gravitational Fields

If we consider a pair of photons racing together, then no, because the gravitational field of each photon itself only propagates at c, so the photons are causally disconnected from each other. It's kind of like a couple of speedboats racing along, leaving wakes. The wakes interact behind the boats,...
by SsDd
Fri Jul 15, 2011 3:51 pm
Forum: Open Space: Discuss Anything
Topic: Light and Gravitational Fields
Replies: 8
Views: 1130

Light and Gravitational Fields

Hello everyone, A question on Light and gravitational fields, I was engaging in friendly banter with an engineer friend of mine, and he proceeded to ask me, quite out of the blue, if light has its own gravitational field. Initially, the question appeared to be rather strange, and I had not quite con...
by SsDd
Mon Dec 13, 2010 5:52 am
Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
Topic: Fireball48 Alert: Fireball Over the United Kingdom
Replies: 56
Views: 33943

Re: Fireball48 Alert: Fireball Over the United Kingdom

Great job neufer. I was wondering why the video looked familiar.
by SsDd
Sun Dec 12, 2010 5:30 am
Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
Topic: Fireball48 Alert: Fireball Over the United Kingdom
Replies: 56
Views: 33943

Re: Fireball48 Alert: Fireball Over the United Kingdom

What I was doing was entering the search term "meteor' and/or "fireball" and then selecting only videos that had been uploaded "This week". This technique still fails to find the video you linked to. So please tell us how you found it! - RJN RJN, I almost do the same exact ...
by SsDd
Sat Dec 11, 2010 5:05 pm
Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
Topic: Fireball48 Alert: Fireball Over the United Kingdom
Replies: 56
Views: 33943

Re: Fireball48 Alert: Fireball Over the United Kingdom

neufer wrote: Hmmm... let me take a wild guess here:

Traveling from:

53.415636 N , 2.89117 W to
53.416330 N , 2.89036 W

Ah, sorry neufer, in all the excitement of finding the video, I did not notce the co-ordinates on his cam.
by SsDd
Sat Dec 11, 2010 8:18 am
Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
Topic: Fireball48 Alert: Fireball Over the United Kingdom
Replies: 56
Views: 33943

Re: Fireball48 Alert: Fireball Over the United Kingdom

I found a video, of a person who claims to have caught the event on the camera in his car. I am sent the Youtuber an email, requesting him in very kind words, if he could divulge his location when he caught this :-
Click to play embedded YouTube video.
by SsDd
Sat Dec 11, 2010 7:38 am
Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
Topic: Fireball48 Alert: Fireball Over the United Kingdom
Replies: 56
Views: 33943

Re: Fireball48 Alert: Fireball Over the United Kingdom

On a UFO hunters website, I found a couple of people discussing a streak of light and a fireball explosion that they apparently thought was a firecracker. However, one of them uploaded a google maps image showing the direction of the apparent streak, Here is the Image :- http://files.abovetopsecret....
by SsDd
Sat Dec 11, 2010 7:29 am
Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
Topic: Fireball48 Alert: Fireball Over the United Kingdom
Replies: 56
Views: 33943

Re: Fireball48 Alert: Fireball Over the United Kingdom

I wonder if any of the pseudo-scientific UFO watchers caught any images, I am guessing they might have cameras pointed permanently to the skies. I have been looking through a large number of mainstream news reports, for a couple of hours now but no one seems to have a photo or video of the event yet.
by SsDd
Thu Dec 09, 2010 4:18 am
Forum: Classroom: Extraordinary Concepts in Physics
Topic: UFOs and Pseudoscience
Replies: 5
Views: 177314

UFOs and Pseudoscience

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=b4tmBdlK_Pc http://asterisk.apod.com/library/...
by SsDd
Thu Dec 09, 2010 4:16 am
Forum: Classroom: Extraordinary Concepts in Physics
Topic: String Theory (Overview)
Replies: 0
Views: 47159

String Theory (Overview)

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=qrOs05IcDYI http://asterisk.apod.com/library/...
by SsDd
Wed Dec 08, 2010 12:19 pm
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Potpourri:- Quantum Mechanics
Replies: 0
Views: 47332

Potpourri:- Quantum Mechanics

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=MjP5_OQj_qs http://asterisk.apod.com/library/...
by SsDd
Tue Dec 07, 2010 7:07 am
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Potpourri:- Gravity
Replies: 3
Views: 50697

Potpourri:- Gravity

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=LNZgmjU2njg http://asterisk.apod.com/library/...
by SsDd
Wed Dec 01, 2010 6:12 pm
Forum: Classroom: Extraordinary Concepts in Physics
Topic: General Physics Paradoxes
Replies: 0
Views: 47894

General Physics Paradoxes

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=F3PBs9pwja8 http://asterisk.apod.com/library/...
by SsDd
Wed Dec 01, 2010 6:00 pm
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Mathematical Fallacies
Replies: 0
Views: 47542

Mathematical Fallacies

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=Ptm6CtPNvvA http://asterisk.apod.com/library/...
by SsDd
Wed Dec 01, 2010 2:46 am
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Parlor Tricks
Replies: 0
Views: 47254

Parlor Tricks

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=b9nmpwDphio http://asterisk.apod.com/library/...
by SsDd
Wed Dec 01, 2010 2:42 am
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Perpetual Motion
Replies: 0
Views: 47190

Perpetual Motion

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=72ht2lwy8bo http://asterisk.apod.com/library/...
by SsDd
Thu Nov 18, 2010 3:48 am
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Search for Life:- Extrasolar Planets
Replies: 3
Views: 51364

Search for Life:- Extrasolar Planets

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=lWc-C5uDWXw http://asterisk.apod.com/library/...
by SsDd
Thu Nov 18, 2010 3:44 am
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Search for Life:- SETI
Replies: 3
Views: 51987

Search for Life:- SETI

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=y6HJHwihc7s http://asterisk.apod.com/library/co...
by SsDd
Mon Nov 15, 2010 4:56 pm
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Time Travel II
Replies: 0
Views: 45887

Time Travel II

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=iLHMgS9AysM http://asterisk.apod.com/library/...
by SsDd
Mon Nov 15, 2010 4:42 pm
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Time Travel I
Replies: 0
Views: 46618

Time Travel I

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=2pdVjIRPnlk http://asterisk.apod.com/library/...
by SsDd
Thu Nov 11, 2010 6:33 am
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Arrow of Time, The
Replies: 1
Views: 54306

Arrow of Time, The

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=w4i1ubGisr4 http://asterisk.apod.com/library/...
by SsDd
Thu Nov 11, 2010 6:31 am
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Negative Mass
Replies: 5
Views: 54482

Negative Mass

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=qnUs4_26D9o http://asterisk.apod.com/library/...
by SsDd
Tue Nov 09, 2010 6:31 am
Forum: Classroom: Extraordinary Concepts in Physics
Topic: Anthropic Principle, The
Replies: 0
Views: 51092

Anthropic Principle, The

The lecture video is embedded below. Additionally, slides used in the lecture are embedded below, or can also be downloaded directly from here . Questions after the lecture? Please feel free to post them in the same thread. http://www.youtube.com/watch?v=RkFSlC3bkfQ http://asterisk.apod.com/library/...