Forum: Science, Mathematics, Medicine, and Technology
31st October 2014, 02:01 PM
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Replies: 107
Views: 17,992
That was the thinking before anyone had ever...
That was the thinking before anyone had ever tried to build a large hybrid motor. Now, in large part thanks to experience with the motor for Spaceshiptwo, we know that large hybrid motors are prone...
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Forum: Science, Mathematics, Medicine, and Technology
31st October 2014, 01:12 PM
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Replies: 107
Views: 17,992
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Forum: Science, Mathematics, Medicine, and Technology
31st October 2014, 01:09 PM
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Replies: 94
Views: 5,583
The rocket was moving at a rate comparable to...
The rocket was moving at a rate comparable to previous launches up to the moment that the first engine explosion occurred. Orbital Sciences has stated that the flight was nominal up to this point. ...
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Forum: Science, Mathematics, Medicine, and Technology
31st August 2014, 04:18 PM
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Replies: 15
Views: 2,194
There is no edge of the universe. The universe...
There is no edge of the universe. The universe exploded everywhere at once. Your friend seems to be picturing the universe as having exploded in one place and expanding out into empty space, with a...
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Forum: Conspiracies and Conspiracy Theories
23rd April 2014, 06:41 AM
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Replies: 116
Views: 13,828
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Forum: Science, Mathematics, Medicine, and Technology
2nd January 2014, 10:57 AM
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Replies: 27
Views: 1,494
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Forum: Science, Mathematics, Medicine, and Technology
8th November 2013, 10:52 AM
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Replies: 30
Views: 3,869
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Forum: Social Issues & Current Events
12th July 2013, 01:45 PM
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Replies: 28
Views: 3,027
This fire doesn't seem to be due to the...
This fire doesn't seem to be due to the batteries, at least. The fire seems to have been just ahead of the tail, in the crew rest area. The batteries are located further forward.
...
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Forum: Science, Mathematics, Medicine, and Technology
11th July 2013, 10:15 AM
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Replies: 54
Views: 2,704
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Forum: Science, Mathematics, Medicine, and Technology
9th July 2013, 10:13 AM
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Replies: 54
Views: 2,704
The plan as I understand it is that once the...
The plan as I understand it is that once the second stage separates, RCS on the first stage turns it until it is pointed horizontally in the direction it's traveling. The center engine re-lights and...
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Forum: Science, Mathematics, Medicine, and Technology
10th June 2013, 10:59 AM
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Replies: 27
Views: 1,515
One important thing to keep in mind is that 3D...
One important thing to keep in mind is that 3D printers are nowhere even remotely close to being as fast or cost-efficient as conventional mass-production technologies for making large numbers of...
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Forum: Science, Mathematics, Medicine, and Technology
8th May 2013, 12:43 PM
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Replies: 131
Views: 6,943
Really doubtful. Identifying banknotes is...
Really doubtful. Identifying banknotes is possible because there is an exact known pattern to compare against. There are countless possible ways to build a gun, so your printer would have to be...
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Forum: Science, Mathematics, Medicine, and Technology
24th April 2013, 09:47 AM
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Replies: 60
Views: 6,185
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Forum: Social Issues & Current Events
18th April 2013, 12:54 PM
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Replies: 142
Views: 11,826
I would doubt that myself. Video I've seen of...
I would doubt that myself. Video I've seen of BLEVEs seem to show a fireball that grows in intensity and size over a period of a few seconds. The videos of this explosion seem to show a more sudden...
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Forum: Conspiracies and Conspiracy Theories
16th April 2013, 01:52 PM
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Replies: 1,708
Views: 186,520
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Forum: Social Issues & Current Events
15th February 2013, 07:45 AM
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Replies: 111
Views: 5,487
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Forum: Science, Mathematics, Medicine, and Technology
31st January 2013, 12:32 PM
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Replies: 40
Views: 7,151
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Forum: General Skepticism and The Paranormal
24th January 2013, 09:21 PM
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Replies: 581
Views: 154,954
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Forum: General Skepticism and The Paranormal
17th January 2013, 02:29 PM
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Replies: 180
Views: 15,131
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Forum: General Skepticism and The Paranormal
16th January 2013, 07:48 AM
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Replies: 180
Views: 15,131
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Forum: General Skepticism and The Paranormal
15th January 2013, 08:28 PM
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Replies: 180
Views: 15,131
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Forum: General Skepticism and The Paranormal
24th October 2012, 12:27 PM
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Replies: 1,097
Views: 100,153
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Forum: Science, Mathematics, Medicine, and Technology
9th October 2012, 01:03 PM
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Replies: 67
Views: 4,364
When you push (or pull) on the end of the rod,...
When you push (or pull) on the end of the rod, you are essentially creating a pressure wave that will move through the rod until it reaches the other end. This is really no different than a pressure...
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Forum: Science, Mathematics, Medicine, and Technology
9th October 2012, 12:17 PM
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Replies: 67
Views: 4,364
Information propagates through matter at the...
Information propagates through matter at the speed of sound in that matter. The speed of sound through any matter will always be less than the speed of light. This is because the information about...
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Forum: Science, Mathematics, Medicine, and Technology
8th October 2012, 04:42 PM
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Replies: 4
Views: 1,357
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Forum: General Skepticism and The Paranormal
7th October 2012, 07:52 AM
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Replies: 110
Views: 13,578
Arguably, even if you have ironclad cases of...
Arguably, even if you have ironclad cases of children remembering previous lives, with details that they would have had no way of knowing that can be independently verified as correct, you still...
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Forum: Science, Mathematics, Medicine, and Technology
25th August 2012, 08:33 AM
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Replies: 50
Views: 5,282
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Forum: Science, Mathematics, Medicine, and Technology
24th August 2012, 07:35 PM
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Replies: 50
Views: 5,282
Not very. It's full of exaggerations,...
Not very. It's full of exaggerations, half-truths, and outright lies.
http://www.forbes.com/sites/alexknapp/2012/05/18/nikola-tesla-wasnt-god-and-thomas-edison-wasnt-the-devil/
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Forum: Conspiracies and Conspiracy Theories
22nd August 2012, 01:43 PM
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Replies: 111
Views: 8,541
The skycrane was not capable of independent...
The skycrane was not capable of independent landing because it was dependent on systems in the rover. In order to land and do useful work, it would need its own power supply (nuclear or solar),...
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Forum: History, Literature, and the Arts
1st August 2012, 06:38 AM
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Replies: 123
Views: 11,726
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Forum: Science, Mathematics, Medicine, and Technology
31st July 2012, 07:56 AM
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Replies: 23
Views: 2,486
You can't design an arrangement of magnets that...
You can't design an arrangement of magnets that imparts a constant torque to the rotor with no energy input. A stationary magnet that pushes against a magnet on the rotor so as to speed up the rotor...
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Forum: Social Issues & Current Events
20th July 2012, 03:24 PM
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Replies: 825
Views: 58,625
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Forum: General Skepticism and The Paranormal
18th July 2012, 01:46 PM
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Replies: 3,979
Views: 291,871
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Forum: Science, Mathematics, Medicine, and Technology
1st July 2012, 06:46 AM
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Replies: 27
Views: 1,858
In any heat engine, the energy conversion...
In any heat engine, the energy conversion efficiency is directly related to the temperature difference between the hot side and the cold side. Nitinol can work with a tiny difference in temperature...
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Forum: Social Issues & Current Events
29th June 2012, 08:53 AM
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Replies: 29
Views: 1,657
Extraction of uranium from seawater has been...
Extraction of uranium from seawater has been demonstrated. The amount of uranium in the oceans is essentially impossible for us to use up, especially since new uranium is constantly leaching into...
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Forum: Science, Mathematics, Medicine, and Technology
27th June 2012, 11:12 AM
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Replies: 127
Views: 4,817
It isn't a matter of dogma. It's a matter of...
It isn't a matter of dogma. It's a matter of math. The math proving that the force inside the sphere is zero was presented to you fairly early on. You don't have to accept anyone's authority to...
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Forum: Science, Mathematics, Medicine, and Technology
24th June 2012, 04:00 PM
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Replies: 127
Views: 4,817
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Forum: Science, Mathematics, Medicine, and Technology
24th June 2012, 03:48 PM
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Replies: 127
Views: 4,817
This:
Still applies. Show your math. ...
This:
Still applies. Show your math. Actually, it would help if you actually showed that you had read and understood the page explaining the shell theorem to begin with.
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Forum: Science, Mathematics, Medicine, and Technology
24th June 2012, 12:40 PM
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Replies: 127
Views: 4,817
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Forum: Science, Mathematics, Medicine, and Technology
22nd June 2012, 07:25 PM
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Replies: 127
Views: 4,817
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Forum: Science, Mathematics, Medicine, and Technology
22nd June 2012, 06:07 PM
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Replies: 127
Views: 4,817
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Forum: Science, Mathematics, Medicine, and Technology
22nd June 2012, 04:12 PM
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Replies: 127
Views: 4,817
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Forum: Science, Mathematics, Medicine, and Technology
22nd June 2012, 12:52 PM
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Replies: 127
Views: 4,817
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Forum: Science, Mathematics, Medicine, and Technology
21st June 2012, 10:27 AM
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Replies: 127
Views: 4,817
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Forum: Science, Mathematics, Medicine, and Technology
10th June 2012, 07:41 PM
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Replies: 18
Views: 2,022
A bit. You can hear lightning bolts fairly far...
A bit. You can hear lightning bolts fairly far away on an AM radio from the amount of EM they put out.
I'm thinking that the 'obstruction sensors' you mention, and the wires running from them to...
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Forum: Science, Mathematics, Medicine, and Technology
10th June 2012, 07:12 PM
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Replies: 18
Views: 2,022
I had something similar happen years ago, when...
I had something similar happen years ago, when lightning struck a tree in our front yard, and random appliances throughout the house and garage stopped working despite no direct connection to the...
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Forum: Science, Mathematics, Medicine, and Technology
5th June 2012, 08:43 AM
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Replies: 62
Views: 2,036
In order for technological advancement to...
In order for technological advancement to completely end evolution, we would have to reach a state where all people had the same number of children regardless of their genetic makeup. Genetics would...
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Forum: Science, Mathematics, Medicine, and Technology
4th June 2012, 09:20 AM
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Replies: 23
Views: 3,432
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Forum: Science, Mathematics, Medicine, and Technology
24th May 2012, 04:42 PM
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Replies: 100
Views: 10,315
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Forum: Science, Mathematics, Medicine, and Technology
24th May 2012, 04:15 PM
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Replies: 120
Views: 9,889
The earthquake by itself did not cause the...
The earthquake by itself did not cause the meltdowns. The plants were knocked offline by the earthquake, but were still intact and had working emergency cooling systems. The meltdowns occurred...
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