Activity Stream

Why would the pole be anywhere near the equator, tim?

The VARB will be perpendicular to the geomagnetic equator

That's entirely up to whoever is interested in doing the research and whatever other priorities they might have. You could try contacting one of the...

It is very nice work except you have it reversed. You have the VAB not at zero and the geographical equator at zero. The magnetic pole should be...

Don't remind me.:eek:

welcome to my world! doing it almost every day in my space plasma physics job!

Absolutely. I got as far as cranking up my photoshop, and then I stopped.

Thank you. I've had 190-odd pages of practice at Apollohoax. I'm actually enjoying the mental exercise of creating these illustrations, as it...

That's a nice bit of work there.

Part 5: So, how to gve yourself the best chance to avoid the belts and swing out over/under them as you increase your apogee? Well, in this...

The web site Rocket and Space Technology by Robert A. Braeunig exists and shows no sign of being abandoned. The last major update was removal of the...

Part 4: So what if City X launches at midday instead? Same orbital inclination, but this time it is a lot closer to the lunar orbital plane....

Part 3: What happens if City X launches a spacecraft at midnight on a course that gives it an orbital inclination equal to the latitude of the...

Part 2: As we have established, Earth's rotation is independent of the plane of lunar orbit. So we add that into the mix. From where you are, the...

One more effort before I call it a night. Part 1: You are observing Earth from a point on the geographic equatorial plane. The rotational axis...

When will I find out the refined estimate from GAIA DR2? How long does it take for such data to result in a published prediction?

Outstanding question for TimFinch to answer. 24 April 2018 TimFinch: What about B - C means that A is impossible? And a record or the...

My point of contention is no different from the one you're already failing to address. Grant Hutchison

i'd like to echo bknight's admiration, Jason. Your stoic persistence in the face of Tim's inability to understand (or at least, admit to...

Again, nicely done as well.

Thank you sir, I had not read that one.

And here's what I came up with: Tim's apparent insistence that the magnetic equator is always north of the geographic equator suggests to me...

Yes. Look, Tim, faking the numbers should be easy, right? If they were able to fake literally everything else--which is impossible no matter how...

Maybe everyone here already knows about this, but there's an excellent review of the constraints on the lunar launch and TLI at the Apollo Flight...

A circle is a distance from some fixed point in space. But outside of a textbook There's really no such place.

-11 - the brightness of a supernova at 650 lightyears - matches the brightness of a gibbous Moon about 70 degrees from full. -9,5 - the brightness of...

Double post.

No, if you wait 12 hours it will be about 40°. The earth (and its magnetic field) rotate about the geographical axis, not the magnetic axis. This is...

Jason I might add I admire your stubbornness in attempting to point out tim's failings. bravo;)