1,117 reputation
118
bio website
location Santa Ana, CA
age 54
visits member for 7 months
seen 20 hours ago

20h
reviewed Close Are humans going to end up living in other planets?
23h
reviewed Approve suggested edit on Could we fly/drive through Jupiter?
1d
reviewed Looks OK Could we fly/drive through Jupiter?
1d
reviewed No Action Needed What is the current accepted theory as to why Titan has retained its atmosphere?
2d
reviewed Close What is brighter/more powerful, a gamma ray burst or a supernova?
Oct
28
comment What causes the bright white area in this photo of the earth?
Since the sun is not visible, then it is quite dark in the British Isles. But I agree that it is a long exposure.
Oct
24
reviewed No Action Needed In 2016, the summer solstice will coincide with a full moon. How often does this happen?
Oct
24
reviewed Leave Open Evidence behind Giant Impact hypthesis
Oct
24
comment Mass of sun's core
Change in what over the change in density?
Oct
23
comment Mass of sun's core
Actually, I was justifying yours. But remember, the density between 20% and 25% is a lot less than that below 20% so the mass wouldn't double.
Oct
23
comment Mass of sun's core
Which numbers are you confused about?
Oct
23
comment Mass of sun's core
With 0.25 radius, the volume is 0.0156 the total volume, which is 1.56%. If 0.8% is 34% of the mass, than 1.56% should be 50% of the mass. Now all that is needed is a probe to determine if it is 20% or 25% of the radius.
Oct
22
answered Mass of sun's core
Oct
22
revised Mass of sun's core
Provided references
Oct
22
asked Mass of sun's core
Oct
21
reviewed No Action Needed Where can I find a catalog of all stars in the Milky Way?
Oct
21
comment Appropriate battery for overnight viewing to drive telescope and GOTO?
@WayfaringStranger Deep Cycle Batteries are usually not sealed since water needs to be added frequently. Also, they usually have much more than 10 Ah. This is what I was refering to: batterysharks.com/12-Volt-7-2-Amp-Sealed-Lead-Acid-Battery-p/…
Oct
19
revised How near to Earth do comets pass?
added 1 character in body
Oct
19
comment How near to Earth do comets pass?
@LocalFluff You're right, they are not all comets, but the only difference between a comet and an meteor is whether it makes a tail.
Oct
19
answered How near to Earth do comets pass?