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Stack Exchange Valued Associate #00005

I am the Director of Community Development for the Stack Exchange Network.

I can be reached at
rcartaino@stackexchange.com


May
19
revised Do we make predictions in our time, or local time?
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May
19
revised Do we make predictions in our time, or local time?
added 58 characters in body
May
19
answered Do we make predictions in our time, or local time?
May
14
comment How many earths fit in the observable universe?
Your answer assumes we are pulverizing the earth to completely fill the volume of a universe-sized container. Without getting into the complicated math behind forming optimal latices of congruent spheres, you should multiply your answer by a factor of pi/(3*sqrt(2)) or about 0.74048. The Kepler Conjecture says that is the highest density that can be achieved by any arrangement of spheres. Oh, and since the observable universe is also expanding at an accelerated rate, you should also update your answer every few hundred millions years just to be safe. Just saying.
Apr
30
awarded  Good Answer
Apr
30
reviewed Reject suggested edit on If Earth didn't rotate, would we feel heavier?
Apr
30
reviewed Approve suggested edit on Why is Mars' atmosphere so thin?
Apr
29
revised Why don't we have 2 Summers and 2 Winters?
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Apr
25
revised Why don't we have 2 Summers and 2 Winters?
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Apr
23
revised Why is iron responsible for causing a supernova?
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Apr
22
revised Why is iron responsible for causing a supernova?
fixed grammar; removed incorrect reference to temperatures and time periods.
Apr
22
revised Why is iron responsible for causing a supernova?
edited body
Apr
22
revised Why is iron responsible for causing a supernova?
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Apr
22
revised Why is iron responsible for causing a supernova?
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Apr
22
revised Why is iron responsible for causing a supernova?
added 67 characters in body
Apr
22
answered Why is iron responsible for causing a supernova?
Apr
15
revised Why don't we have 2 Summers and 2 Winters?
deleted 13 characters in body
Apr
7
comment “How the Universe Works”: is it scientifically accurate?
What concept specifically are you concerned about? I don't think you can declare an entire series of material covering hundreds of topics broadly either scientifically sound or bunk. There's no useful information to be had from that. What are you asking about specifically?
Apr
1
comment What is the minimum mass required so that objects become spherical due to its own gravity?
You would have to define "objects." Icy bodies start to become round under their own gravity at a certain mass. Rocky planets will take more. Liquids would form a sphere with miniscule mass as I assume gas proto-planets would be round as soon as they have enough gravity to be considered an "object."
Feb
27
revised Why are most lunar maria on the visible side?
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