Sciencescience

Wed Jan 9, 2019, 08:31 PM

wow - home from 110 million kilometers away . . .

https://www.thestar.com/news/world/2019/01/08/asteroid-circling-spacecraft-grabs-cool-snapshot-of-home.html


An image captured by NASA’s Osiris-Rex spacecraft shows the asteroid Bennu (top right) 43 kilometres from the spacecraft, and the Earth and moon (bottom left) more than 110 million kilometres away. (NASA/GODDARD/UNIVERSITY OF ARIZONA/LOCKHEED MARTIN SPACE / ASSOCIATED PRESS)

The tiny asteroid — barely one-third of 500 metres across — appears as a big bright blob in the long-exposure photo released last week. 110 million kilometres away, Earth appears as a white dot, with the moon an even smaller dot but still clearly visible.

Osiris-Rex is the first spacecraft to orbit such a small celestial body, and from such a close distance — about 1,600 metres out.

Next year, Osiris-Rex will attempt to gather some samples from the carbon-rich asteroid, for return to Earth in 2023.

Osiris-Rex launched from Florida in 2016.
______________________________________________________________________________

Somehow I don't feel very significant after looking at that . . .



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Reply wow - home from 110 million kilometers away . . . (Original post)
akaConcernedCanuk Jan 9 OP
Cold Warrior Jan 9 #1
MumblyPeg Jan 9 #3
Cold Warrior Jan 9 #5
MumblyPeg Jan 9 #6
Cold Warrior Jan 9 #7
MumblyPeg Jan 9 #8
SatansSon666 Jan 10 #9
SatansSon666 Jan 10 #10
SatansSon666 Jan 10 #11
Gamle-ged Jan 9 #2
Squeek Jan 9 #4

Response to akaConcernedCanuk (Original post)

Wed Jan 9, 2019, 08:35 PM

1. Yep. Me too. When I feel this way, I go back and read Sagan.

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Response to Cold Warrior (Reply #1)

Wed Jan 9, 2019, 10:31 PM

3. there is no way this is true, they wouldn't be able to do this using the calculations in place

when it launched. its old and the math has all expired... so there's no way it could work at all... right Larry?


BWAHAHAHAH!

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Response to MumblyPeg (Reply #3)

Wed Jan 9, 2019, 11:04 PM

5. Okilie dokilie Mumbles

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Response to Cold Warrior (Reply #5)

Wed Jan 9, 2019, 11:14 PM

6. Hey, I'm just trying to abide by the Cold Warrior wisdom regarding the "fact" that math

has an expiration date and I should never reference technical papers that are..
Well you know that brings up another question, you never told me what the actual shelf life of math is.
12 months? 3 months? 3 years?
I need something to work with here, Larry.

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Response to MumblyPeg (Reply #6)

Wed Jan 9, 2019, 11:40 PM

7. Sigh, you seem to persist in your lack of understanding

If one has an equation with three variables and a single constant, can one change the resultant by changing the variables? You are simply embarrassing yourself by persisting in your specious argument.

For those of you who want a laugh, Mumbles’ relevant post is here:

https://www.discussionist.com/?com=view_post&forum=1018&pid=31263

Notice he references a 12 year old article that discounts the viability of using hydrogen as an energy source due to MULTIPLE factors:

- The large amount of energy required to isolate hydrogen from natural compounds (water, natural gas, biomass),
- Energy required to package the light gas by compression or liquefaction,
- Energy to transfer the energy carrier to the user, and
- The energy lost when it is converted to useful electricity with fuel cells

Notice also, Mumbles claims only one of those factors is a constant (the last). The first three are all variables that can and have been ameliorated by technology in the 12 years since his cited article.

I have no idea why you are fixated on this, Mumbles, other than perhaps you were caught trying to use 12 year old technology to justify your agenda. Poor, poor Mumbles.

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Response to Cold Warrior (Reply #7)

Wed Jan 9, 2019, 11:56 PM

8. "I have no idea why "

no, you don't. that's why this is all so hilarious.

none of ANYthing you said matters.
it takes X amount of electricity to create X * .5 energy stored as hydrogen.
I don't give a shit if the materials, and all other processes are FREE... it's a dumb fucking idea to use more energy than you get out the other side just for the sake of doing it. Only an IDIOT thinks this is somehow viable. not to mention, the only way to do it at scale is to use the energy you want to get rid of in order to create it. HAHAHAH! Yea, makes total sense to the mentally impaired.
so, Larry... unless you figure out a way to split those atoms with 100% efficiency, you're just stroking yourself.
Of course, I don't expect you to understand such things, you know... the math is 12 years old so it's wrong and all.

hahah!
SMH

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Response to MumblyPeg (Reply #8)

Thu Jan 10, 2019, 04:52 AM

9. Who is taking about splitting atoms?



You can't split a hydrogen atom. There is only one proton.
You can ionize it but that not splitting the atom. With a lot of energy the proton can be split into quarks, but that isn't what is happening when producing hydrogen from electrolysis of water.
You really have no idea what you are talking about.

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Response to Cold Warrior (Reply #7)

Thu Jan 10, 2019, 05:33 AM

10. He has no clue about any of it.

He sees on some.blog how the math works for electrolysis of water and we'll, that's all that matters to him.
He wants to get one over on you so bad that he has to keep repeating the one thing he thinks he knows about.
He doesn't.
He thinks electrolysis is splitting atoms.

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Response to MumblyPeg (Reply #3)

Thu Jan 10, 2019, 06:05 AM

11. You keep calling hm Larry.

Are we allowed to use real names here?
That would be interesting.
Don't you think?

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Response to akaConcernedCanuk (Original post)

Wed Jan 9, 2019, 08:36 PM

2. Wait.. did somebody call you significant?! Why, that son-of-a...

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Response to akaConcernedCanuk (Original post)

Wed Jan 9, 2019, 10:56 PM

4. Pale blue dot....

yep...compared with the vastness of our solar system, not to mention the entire universe, we are nothing.


Here....Youtube video showing from the smallest to the largest things around us

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