Best Of
Re: Returning to Folding@Home in 2016
This folding station is fully operational. Fans balancing on video cards: check. Modular server PSU running a video card: check.
_k
Re: FBI gets court order forcing Apple to engineer a backdoor into iPhone
He's got Google's axe
http://www.businessinsider.com/sundar-pichai-responds-to-apple-case-2016-2
Re: Gravitational Waves
@Cliff_Forster said:
Okay, explain to me how sound traveled that far in a vacuum? I understand their is some precedence for some atmospheric medium like gas clouds and such but I thought in space no one could hear you scream?I want to believe, so badly, you have no idea. My imagination is running wild with it, but the idea that man can pinpoint a sound as being made 1.3 billion years ago, traveling from a place where sound typically doesn't travel, well, it's just hard for me to comprehend the discovery beyond accepting it just because their people that say so are smarter than me.... I very much would like to understand.
The "sound" propagated as gravity waves traveling at the speed of light. Never before have we had instruments of sufficient precision to detect gravity waves and their existence was only hypothetical until now. Also interestingly, the theory predicts the frequency and intensity of gravity waves for various kinds of naturally-ocurring phenomenae (based on Einstein's theory as @winfrey noted and accounting for the amount of energy released over time) suggests that they're predominantly in the human audible range for the higher-energy events (i.e. 20 Hz to 20 kHz). The "sound" you heard is playing back the recorded gravity waveform as an acoustic waveform in air. You're quite literally listening to the sound the Universe makes as it expands and contracts. It's an entirely new kind of astronomy.
drasnor
Re: Gravitational Waves
I just think it's so cool that we have a new way to examine our universe. Before all we could use was basically what is in the electromagnetic spectrum now we have a way to detect gravity waves. While probably not as immediately profound, it's like a deaf person being able to hear or a blind person being able to see. Except the deaf or blind person didn't know beforehand that they were otherwise impaired.
E = mc^2
It is so stunningly elegant.
Winfrey
Re: Gravitational Waves
@Cliff_Forster said:
I very much would like to understand.
Is thought the first video on this page was helpful. They showed that during the press conference. The rest of the event site is good, too.
Re: Gravitational Waves
The waves produced by the merger of these black holes weren't sound waves, but rather "gravitational waves" which travel through the fabric of space-time similar to the way sound waves travel through air. Space-time is the fabric of reality as we perceive it which has three spacial axes and the perception of the forward motion of time. This event caused a ripple that was detected by scientists, proving part of Einstein's theorem.
I hope that makes it easier to understand 
cola
Re: All these years and I finally made my food blog
my sister and i did your vegi curry recipe. soooo good! inspired me to do an asian style lunch every day at work. rice with some kind of curry or stir fry dish. 
i am in charge of rice, and my sister is in charge of the rest. she is an awesome cook



