carl_corder
Joined 10 years ago
Karma
15
Submissions
9
Member since
Feb 2
Recent submissions
Comment · 9 years ago
This video really helped me to digest the concept. Thanks for sharing!
Comment · 9 years ago
This reminds me of a passage from "Einstein's Dreams" by Alan Lightman. It's the difference between mechanical time & body time. You can read it here: http://members.iif.hu/visontay/ponticulus/britannicus/einste... (the 24 April 1905 entry).
Comment · 9 years ago
Of course it floats. But that's not what I was trying to say. Go to your cup, put some ice in it and then mark the water level. Now let the ice melt and remark the water level. They will be at the same level.
Comment · 9 years ago
I agree with Firebrand (^above) that if the ice is already floating (sea ice) and it melts it will cause no other immediate displacement of volume (even if a large part of that floating ice is above sea level and even if solid water takes up less space than liquid water). That's an application of Archimedes principle and can be explained here: http://physics.stackexchange.com/questions/110645/why-does-i.... Indeed it's land ice melting that causes sea level rise. However, sea ice melting still changes the albedo and does directly contribute to climate change.
Comment · 9 years ago
I wanted to try playing the game (EtherSpace), so I added the MetaMask extension to Chrome. I noticed the account is initiliazed with 1.000 ETH on the Ropsten Test Network. However, the game requires you to play on the Main Ethereum Network for a price of 0.01467 ETH. Sadly, I have no ETH on this network.
Comment · 10 years ago
This is my take away:
PolarPlot[(Abs[Cos[2(t - Pi/2)/4]] + Abs[Sin[44(t - Pi/2)/4]])^(-1/(-0.2)), {t, 0, 2*Pi}, PlotRange -> {{-20, 20}, {-5, 32}}, PlotStyle -> Darker[Green, 0.2], PlotTheme -> "Marketing"]
Comment · 10 years ago
I understand how these call would cost Instagram/Google/Microsoft money. But, could someone please explain why a call to a premium number "earns" the account holder money?
Comment · 10 years ago
Another interesting and related topic are Ramsey numbers. R(3,3)=6 which means:
"In any party of six people either at least three of them are (pairwise) mutual strangers or at least three of them are (pairwise) mutual acquaintances"
https://en.wikipedia.org/wiki/Theorem_on_friends_and_strange...