Search found 15 matches

by Radium
Fri Oct 07, 2011 1:44 pm UTC
Forum: Science
Topic: Speck of Dust
Replies: 92
Views: 12749

Re: Speck of Dust

Those who cannot remember the past are condemned to repeat it. Those that don't read the first page are condemned to repeat it. Or something vaguely along those lines.
by Radium
Thu Sep 22, 2011 2:54 pm UTC
Forum: Science
Topic: Science Websites
Replies: 70
Views: 216491

Re: Science Websites

I'd also suggest adding Academic Earth (http://academicearth.org/subjects/) to the General section of the list. ^_^
by Radium
Thu Sep 22, 2011 2:47 pm UTC
Forum: Science
Topic: More websites like this?
Replies: 4
Views: 1332

Re: More websites like this?

Try looking up Academic Earth.
The main good sections are Physics, Chemistry, and Mathematics
by Radium
Thu Sep 01, 2011 11:02 am UTC
Forum: Science
Topic: Speck of Dust
Replies: 92
Views: 12749

Speck of Dust

http://i.imgur.com/yGWJV.jpg This photograph was taken by the Juno Space Probe, bound for Jupiter, at a distance of 9 million kilometres on the 30th of August. It is an image of the earth and the moon. The entirety of the extent of human influence has been in this image. Every single person lived, ...
by Radium
Sat Aug 27, 2011 4:19 pm UTC
Forum: Mathematics
Topic: Functions
Replies: 11
Views: 1552

Re: Functions

These are all awesome, thanks :D
by Radium
Sat Aug 27, 2011 7:13 am UTC
Forum: Mathematics
Topic: Functions
Replies: 11
Views: 1552

Re: Functions

This is for the activation function of a neural network. I'm trying to optimize an image recognition neural network, and I'm messing around with some functions.
by Radium
Sat Aug 27, 2011 6:03 am UTC
Forum: Mathematics
Topic: Functions
Replies: 11
Views: 1552

Re: Functions

Thanks :D
However, is there one which has a horizontal asymptote at 0? I just realized that I was wrong. :evil:
by Radium
Sat Aug 27, 2011 5:26 am UTC
Forum: Mathematics
Topic: Functions
Replies: 11
Views: 1552

Re: Functions

Beyond arbitrary point (a,0) and (-a,0), it can do whatever the hell it wants. The only important thing is that from (a,0) and (-a,0) it looks like the image. :)
by Radium
Sat Aug 27, 2011 5:15 am UTC
Forum: Mathematics
Topic: Functions
Replies: 11
Views: 1552

Functions

This is just a quick question. The following an example of a sigmoid function with the form y=(1/(1+e^(-x))): http://i.imgur.com/UvTS4s.jpg The following is an example of a gaussian of the form y=e^(-x^2): http://i.imgur.com/hupJRs.jpg I'm looking for a function that basically looks like this: http:...
by Radium
Wed Aug 24, 2011 3:09 am UTC
Forum: Serious Business
Topic: Definition of Free Will
Replies: 728
Views: 152043

Re: Definition of Free Will

Although, if that conclusion that our actions are based on the biology and physics within the human body, then wouldn't it be possible to, given enough information, predict what action someone will do? And if that's true, doesn't that imply the existence of 'fate'?
by Radium
Sat Aug 20, 2011 2:07 pm UTC
Forum: Fictional Science
Topic: Examples of terrible science in fiction
Replies: 195
Views: 52775

Re: Examples of terrible science in fiction

Most disaster movies will have some bad science in them. One which sticks out to me is Dante's Peak (1997). Notable breaks in science include: driving an SUV over a river of lava (http://www.youtube.com/watch?v=r421zjv-hoE) and lava having the viscosity of light honey and a boat+woman melting in wat...
by Radium
Sat Aug 20, 2011 1:47 pm UTC
Forum: Science
Topic: The Double Slit Experiment
Replies: 7
Views: 2046

Re: The Double Slit Experiment

Now a real scientist would have done another test in which they observed the chickens being fired and compared the results. They really should be submitted their work for review instead of making claims. Also, one of those feather marks has been fudged, it's off the interference point.
by Radium
Sat Aug 20, 2011 1:12 pm UTC
Forum: Science
Topic: Is energy faster than light?
Replies: 8
Views: 2742

Re: Is energy faster than light?

The whole rod doesn't travel at c. You get a compression wave which travels along the rod (think like a slinky). In addition, considering that energy is related to mass by E = mc^2, it doesn't make much sense that energy should be able to travel faster than light if matter can't either.
by Radium
Thu Aug 18, 2011 1:13 pm UTC
Forum: Serious Business
Topic: Definition of Free Will
Replies: 728
Views: 152043

Definition of Free Will

Now there have been a large amount of discussions on this fora about free will, however, the actual topic is pretty poorly defined, which makes actually debating the issue slightly problematic. My definition is likely flawed and/or incomplete, and is that: Free will is the independence of action and...
by Radium
Thu Aug 18, 2011 3:46 am UTC
Forum: Science
Topic: Laplace's Demon?
Replies: 6
Views: 3278

Laplace's Demon?

First, a quick explanation for those of you who don't know what Laplace's demon actually IS. It's the concept that if you know the position and momentum of every particle in the entirety of the universe, the entirety of future of the universe can be predicted through the laws of classical physics. N...

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