NASA warns two asteroids hurtling closer to Earth than the MOON in 20,000mph

I suppose it is meant to get people to rarely use ignore, I am tempted to take him off for the entertainment he provides but then I have a feeling I will waste more time on a lost cause.

 

At least it was a demonstration of the scientific method rather than just claiming that not only does ignore not work but it's some kind of NASA-inspired conspiracy to curtail free speech

 

Thanks for reminding me why I used ignore....think I'll leave it that way.

 

I didn't mean to be patronizing - I'm constantly astounded by space travel.

We have pictures sent from a satellite that visited Pluto, about 4.5 billion miles away. So, 35 million miles is a deal, but not that much of one. Satellites have a bunch of software that can do the things that need to be done, so those on Earth can give reasonably high level commands. It's not like controlling a drone with a joystick.

Those who plan satellite trajectories know precisely where the planets are, the strength of their gravity, and whatever and then they do a bucket load of totally amazing math.

 

Facts, dear boy, facts are what impress me, not theorematic presumptions, videos which were supposedly recorded on Mars then somehow turn up on Youtube, and CGIs which prove nothing at all. If you can come down to the real world from your fantasy one for a little while, I suggest you put your arrogance on hold whilst recalling the tale of the emperor's new clothes? Oh and a reminder to contemplate one of my signatures - the one which says 'The bigger the lie, the more there will be who, with child-like gullibility, refuse to believe that it is a lie.' Meanwhile I shall retire into my little bubble of ignorance, and turn my attention to matters of moment.

 

And how do you measure the change of angle when the Earth is constantly rotating?

Do you have any concept of of how far 'a billion miles' is, never mind billions plural of miles. Sorry, not convinced.

 

And I respect that, Will, but not all of us are?? And I thank you that your posts to me (in my ignorance lol), given our differences, have been and always are respectful.

 

Facts supersede your opinion/s.
All you continue to do is document your ignorance of the science you presume to criticize.

 

Noted.

 

What would constitute factual evidence of man having sent probes to Mars for you ?

 

Well I was going to say that if I saw humans in that video who were watching the dust devil, I guess that might convince me; but then I subsequently thought that I still wouldn't be convinced that it was recorded on Mars, so I guess that there's nothing that will (convince me). What is it that convinces you it was recorded on Mars?

 

That's interesting. There is absolutely nothing that will persuade you that unmanned probes have been sent to orbit around, or land on Mars, there has to be a human in shot.

That said, as far as I can recall you don't think the moon landings happened and they had humans in shot regularly. It seems that you have made up your mind and there is literally nothing which will convince you otherwise apart from perhaps you personally experiencing the journey to Mars and seeing it with your own eyes.

There's no one single thing that convinces me that the various videos from various Mars orbiting probes and landing probes have filmed dust devils. I suppose it's because the existence of dust devils is compatible with what we know about the Martian atmosphere and "weather" and that I am confident that probes have been sent to Mars because I've seen the data arriving from them.

 

The trigonometry used is the same trig that was understood thousands of years ago. The measurements are carried out 6 months apart when the Earth is on the opposite side of its orbit around the sun. I presume you accept Earth orbits the sun?

Well yes of course. How far away do you think each planet and Pluto are from the sun? Please give the figures that you accept as possible otherwise your argument is worthless

 

I didn't ask you to explain the phenomenon of Martian dust devils, only if you believe the vid was filmed on Mars, so a yes or no would have done?

 

Prove to me that your figures are correct and I'll concede the argument; waffling about trigonometry and measurements which are carried out every 6 months because the sun got in the way, then all those measurements are added up to make the sum total, doesn't cut it for me I'm afraid.I find it far too fanciful - and a bit boring too actually. Maybe it's the cynic in me?

 

LOL It's not because the sun is in the way! Look up parallax - you can see the way parallax works by closing one eye and pointing to an object - switch eyes and the position of the object appears to change. Parallax is used to determine distance to stars using ancient known trigonometry

Before going any further you need to state what you actually believe.
Do you believe the Earth orbits the sun?
Do you believe the earth is spherical?
Do you believe that the circumference of Earth is 25,000 miles?
Do you believe that the moon is 240,000 miles away?
Do you believe that the sun is 91 million miles from Earth?

So yes or no answers please and where applicable the distances you believe

 

Answers are in sequential order|:
Yes.
DUH!
Yes.
Dunno.
No, because I believe there's no way to measure it, so it has to be a guess.

 

Have you ever used a laser range finder?

If so...think about a really big one. Ever wondered how Sonar works, how Dolphins hunt or bats? How about why your remote control does not work from next door or why your garage door opener does not work from a mile away?

 

I only answer posts from a given poster - one at a time, if you will, otherwise I have to duplicate the replies to more than one member. If true and justice doesn't come back to me I'll then answer yours.

 

I doubt it, I think you're deliberately trying to remain ignorant.

There have been several posts with links to how distances are measured by parallax and you have chosen to either not read them or dismiss them. Parallax measurement is exactly the same principle that allowed the original Ordnance Surveys to be done and the technique that cartographers and navigators have used for centuries.

It would take a few minutes to read one of the articles and maybe you'd understand but then again, if you don't "get" the maths then maybe not.

 

If all you're going to do is to keep calling me 'ignorant' I'll stop communicating with you. Just answser the effing question plainly and without all the pretentious crap - was it filmed on Mars or not?

Actually nobody seems to want to answer that question - maybe I've stumbled upon the elephant-in-the-room conversation-stopper?

 

The question has been answered and proof offered but you ignore and dispute it. This as well as many, many examples of answered query being dismissed are the reason you are considered purposefully ignorant.
You do not get to whine about being debased while continuing with the reason for it.

 

Where? Give me the post numbers please.

 

Short answer - yes

There's a longer, qualified, answer where I'd explain why I trust the global scientific community not to conspire on this scale.

 

So we can start with the moon. Mirrors were left on the moon during the various moon landings by various countries including the USSR. These mirrors make it possible to fire a laser beam and get the beam reflected back to earth where the reflected beam can be analysed. The time taken for the beam to travel to the moon and back can be used to calculate the distance to the moon using the simple equation velocity = distance over time. We know the speed of light (laser beam is a light source) and we have measured the time it takes to be reflected back hence we now know the distance to the moon.