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Asteroids

It has been mentioned elsewhere on the forum, the fact that we are due for an Asteroid strike. Assuming that we do, at sometime in the near future, do our World leaders have any contihgency plans to put into place to deal with such a threat.
I am presuming that if we have the solution, it is viable, however, IF the Asteroid is so large than it can’t be destroyed prior to it hitting Earth, what would you do, considering that it would be , say in 6 months time?.

Lincoln. 7

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By: Lincoln 7 - 26th February 2011 at 23:03

I’m sound engineer, not a radio engineer. Ahhh sorry, you’re not aware people have skills in different places, are you? Then again, what more could I expect from a troll?

Right, that’s enough of taking to narrow minded ignorant people for one night. Bye.

From one TROLL to another, good night.

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By: PMN - 26th February 2011 at 22:48

I’m sound engineer, not a radio engineer. Ahhh sorry, you’re not aware people have skills in different places, are you? Then again, what more could I expect from a troll?

Right, that’s enough of taking to narrow minded ignorant people for one night. Bye.

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By: Lincoln 7 - 26th February 2011 at 22:47

No, Not going to argue on this one PMT. sorry, I meant, PMN being an expert on sound systems and able to repair such items, bet you couldnt fix the radio in my Landy, even a main dealer cant work out whats wrong with it.

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By: PMN - 26th February 2011 at 22:36

No, you’re way off the mark on this one. Of course I couldn’t sit down with Stephen Hawkins and have a discussion on the big bang theory – neither could Jaco Pastorius if he were alive now but he was brilliant in other ways, Beethoven probably couldn’t either if he were still around but he was brilliant in other ways, too. There are millions of other people who are equally as brilliant as Hawkins who couldn’t talk about science at his level because they’re brilliant in other ways. I can walk into an arena and rip an entire extremely complex system apart and rebuild it, and get great results mixing a band through it (and I’ve done that many, many times in many different countries and many different circumstances). I’ve also gigged arenas and places like that as a musician; something Hawkins, even if he possessed the physical ability to do so would probably never actually be able to do. People are good at different things, and having a brilliant mind does not in any way mean you’re automatically good at certain things. We’re all different, and that runs through absolutely every aspect of how we live.

Sorry mate, but don’t even think about arguing this one! You’re wrong, it’s that simple.

And it’s PMN, NOT PNM!

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By: Lincoln 7 - 26th February 2011 at 22:36

In 1967: http://history.nasa.gov/1967treaty.html

See Article IV.

Thanks G.A. answered my question perfectly, now, about the white paint theory…………

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By: Lincoln 7 - 26th February 2011 at 22:32

PNM. So, you, could sit down with Prof S Hawkins and have, say a 3 hrs long conversation, on the big bang theory, and understand everything he was talking about?.and also be able to fully understand exactly the points he was making, C’mon, without getting into yet another argument you know what I mean.
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By: PMN - 26th February 2011 at 22:14

If you have a brilliant mind as you quote, you can use BIG words that only another brilliant mind can understand

Absolutely 100% not the case. In fact, I can’t think of a single less accurate line ever written in these forums. You find people who have brilliant minds artistically yet don’t have the slightest concept of how to write effectively or expressively, or brilliant creative writers who are rubbish with basic maths. Look up Howard Gardner’s Multiple Intelligence theory, it makes quite interesting reading.

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By: Lincoln 7 - 26th February 2011 at 16:12

Hi PeeDee, Sorry to hear about your little girl, and I hope most sincerely that she makes a speedy recovery. I had two daughters and a son, we had a few traumatic incidents like that/similar, over the years. They have all flown the nest now, but would have them all back today, warts and all.

Right, back on topic now,Who are the USA and Russians to ban the testing of nukes in space, or perhaps a better question would be, is it because both of them have things in space they don’t want anyone to know about?, and that by nuke testing it may wipe out their secrets.
I was meaning to ask, the solar sails, you stated they were about 2 thou thick, which means any small space debris could potentialy destroy the solar sails. Is there not a better way, excluding G.A. and his tin of white paint and paint roller 😀

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By: Grey Area - 26th February 2011 at 15:58

Why and when did “They” ban the use of nuclear explosions in space?

In 1967: http://history.nasa.gov/1967treaty.html

See Article IV.

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By: PeeDee - 26th February 2011 at 14:15

Mornning PEEDEE bet you were up all night Why and when did “They” ban the use of nuclear explosions in space?.

Lincoln .7

Up all night with a poorly little girl. After nearly losing her at Christmas (OK, that’s a slight dramatic, but she had Swine Flu and had a Febrile convulsion including stopping breathing for 5 seconds, waiting for the Blues n twos, a total of 10 minutes of my life I wouldn’t wish on Osama Bin Liner!), I listen to her every breath. Anyway: –
When, I forget.
Why……it was to prevent US and USSR playing whizz bang wheeeeeeeeee in Space.
I’m off air now, need to fit the bottom of a Bath Panel plinth, which isn’t parallel or level but needs to be a press fit all the way to remove shear forces off the screws in the main panel…which was “Nursed” into position as the top lip of the bath wasn’t flat. Gonna measure it every 6 inches with a home made slip-guage. (Coupling nut and Bolt!)

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By: Lincoln 7 - 26th February 2011 at 14:01

Mornning PEEDEE bet you were up all night thinking all that up! I quite like note 2, I can up the anti on that by plus 10 at least, I havn’t a single grey hair on my head, they are ALL grey:D
I must admit though the colouring seems to advance when on these forums.
I like thinking outside the box, it’s the only time I get out!
Why and when did “They” ban the use of nuclear explosions in space?.

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By: Sky High - 26th February 2011 at 14:00

PETE, If you have a brilliant mind as you quote, you can use BIG words that only another brilliant mind can understand, (Without the use of Google!!)
As the old saying goes..”You can’t make a silk purse out of a sows ear”.

Lincoln .7 😉

:diablo:

I don’t the size of the word means anything. Remember the late great Hancock and the episode where he was struggling to read Bertrand Russell. He knew all the words but couldn’t make sense of them as Russell had written them. He decided to watch TV instead……..:)

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By: PeeDee - 26th February 2011 at 13:47

So, the mass is travelling at between 10.000 and 40.000 mtrs Per Sec, How does a missile, fired from Earth, PeeDee note…carrying your solar sail, travelling at Gawd only knows what speed TOWARDS the asteroid, miss the mass, slow down turn around and gather enough speed to catch the mass up,self anchor, and deploy the sails, would not the sails be destroyed by the very self same solar wind that would be the panacea to the problem?.
I just don’t think we have even the most basic technology yet to even begin to figure out this scenario, what say you both, Hypothetically possible or perfectly possible?.

Lincoln .7

The “Wind” is not the one that takes out your fence. It won’t drag like a parachute.
Speed to intercept, we need to be allowed to carry out nuclear explosions in Space. A practice which “The World” has banned itself from. Then we can get to Speeds we need, be it a rebirth of Orion or similar.
And, the particle accelerator may give us some more ideas about travelling slightly faster than my V8. It’s not there just to see what happened at 1 trillionth of a second after the big bang. One day, we know we shall have to leave this planet, the Sun will grow and the Planet will be crisped…..or maybe not (Note 1). However, I’m sure the experiments will tell us how to travel at 99% Speed of Light.

Note 1. There is a possibility that as the Sun grows into a Red Giant, it’s mass will be reducing….so the pull on the Earth will be less, so the orbit of the Earth will increase in diameter, keeping us away from the growing Sun and prolonging the Life of the planet at least twice that of present thinking.

Note 2. Young Sprog? I’m closer to 60 than I want to be.
Note 3. All the sums we do are taken as read, because they fit the known Universe and all things balance on each side of the equals sign. Yes, Physics can’t lie…..Unless the fundamental state of Physics changes of course……this is a box too big to think outside of, my hair is already looking like a young Heinz Wolff!

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By: Lincoln 7 - 26th February 2011 at 13:28

I don’t think that having a brilliant mind has anything to do with communicating a point of view. I can think of highly intelligent, creative thinkers who find it difficult to communicate their knowledge. There will be others with an ability to communicate ideas, not necessarily their own, to others. Good teachers fall into the latter category.

PETE, If you have a brilliant mind as you quote, you can use BIG words that only another brilliant mind can understand, (Without the use of Google!!)
As the old saying goes..”You can’t make a silk purse out of a sows ear”.

Lincoln .7 😉

:diablo:

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By: Sky High - 26th February 2011 at 13:09

I don’t think that having a brilliant mind has anything to do with communicating a point of view. I can think of highly intelligent, creative thinkers who find it difficult to communicate their knowledge. There will be others with an ability to communicate ideas, not necessarily their own, to others. Good teachers fall into the latter category.

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By: Lincoln 7 - 26th February 2011 at 12:56

I Left school at 15 PNM things were different in those dark days which I for one would happily go back to any time.People actualy TALKED to each other.
No, the only thing open was if you had the intel to go on to Grammer school, or as in my case, do an apprentiship, Nice to know though that you, PeeDee and a lot more of us are no Einstiens, but can still get our points across.
Have you a GIG, as they say on, this W.E.

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By: PMN - 26th February 2011 at 01:09

what say you both, Hypothetically possible or perfectly possible?.

I’d say no. Whether the figures work and we can theoretically move such a mass with such a small force or not I can’t see how it can be practically made to work. I’m no scientist though, so who knows.

Just a random point about being a sprog (something I haven’t been called for a few years!) and your mention of higher education and uni, I left school at 16 with terrible GSCE grades and went straight into music; I didn’t even stay on for the sixth form and certainly didn’t go to university. Education has nothing to do with my interests, I’m just naturally a bit of a geek with an interest in the worlds beyond this little blue sphere we inhabit. 🙂

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By: Lincoln 7 - 26th February 2011 at 00:05

This is all fantasy island stuff…..if we’ve got 6 months then I’ll just take myself off to a beautiful, serene part of the world and, what’s today’s word? – chill!:cool:

I hate to P on your parade S.H. and I hope you enjoy you last 6, personaly I find the older one gets, the more I want, nay, need to learn, and these young sprogs like PeeDee, and PNM, and even Grand dad G.A. have on this Posting taught me quite a lot I never knew about, No. I never went to Uni, Private school or any higher education, I completed my apprentiship, obtained my City and Guilds,and Bobs your uncle been taught by lifes University, I am always open to learning something new, no one, and that includes Newton 😀 knew/knows everything, but at least we can argue a jolly good opinion, on these forums.

Lincoln .7.

My pet hate is going clothes shopping like today with the wife, now thats food for thought for a Posting. :diablo:

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By: Lincoln 7 - 25th February 2011 at 23:47

So how do we get a sail alongside a meteor travelling at speeds between 10,000 and 40,000 metres per second for long enough to exert any kind of force for long enough to have any effect? I’m not really seeing how this idea is practically possible, and I still don’t really believe that a force of probably 1 or 2 newtons is really enough to even vaguely influence the trajectory of a meteor. Alright, I’m fat and heavy but that wouldn’t even move me never mind several hundred tons of rock and metal.

Lincoln 7,

“A reaction engine is an engine or motor which provides propulsion by expelling reaction mass, in accordance with Newton’s third law of motion. This law of motion is most commonly paraphrased as: “For every action force there is an equal, but opposite, reaction force”.

Examples include both jet engines and rocket engines, and more uncommon variations such as Hall effect thrusters, ion drives, mass drivers and nuclear pulse propulsion.”

Lance is bang right on this one! Rocket thrusters use exactly the same principle of movement as a turbofan engine on earth and squids/octopuses in the sea, only obviously the absence of oxygen in the atmosphere (or indeed, the absence of any atmosphere at all) means they have to carry their own and mix them to make combustion possible.

So, the mass is travelling at between 10.000 and 40.000 mtrs Per Sec, How does a missile, fired from Earth, PeeDee note…carrying your solar sail, travelling at Gawd only knows what speed TOWARDS the asteroid, miss the mass, slow down turn around and gather enough speed to catch the mass up,self anchor, and deploy the sails, would not the sails be destroyed by the very self same solar wind that would be the panacea to the problem?.
I just don’t think we have even the most basic technology yet to even begin to figure out this scenario, what say you both, Hypothetically possible or perfectly possible?.

Lincoln .7

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By: Flygirl - 25th February 2011 at 17:51

😀 Enjoy your Physics ! I for one is off for supper .:D

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