It's just a big stone, really
-
David Stone wrote: Besides...millions of people walk that street every day. Thus it would stand to reason that the concrete is strong and well made. If everyone was to walk around wearing sharpened high-heeled shoes that would not necessarily be the case. David Stone wrote: But it proves that small objects can impact bigger objects. It has nothing to do with the size of two objects, it is what they are made of that counts. A penny (at least sterling pennies) are made of copper, thus is stands to reason that copper has a high density or whatever the heck that property was that was mentioned in my physics lecture when we discussed this exact same example than concrete.
David Wulff http://www.davidwulff.co.uk
One 18yrs male, red and white, good condition; daily servicing required. £500 collect ono.
David Wulff wrote: A penny (at least sterling pennies) are made of copper No clue what a sterling penny is, but AFAIK they stopped making pennies from copper (at least primarily) here, after copper become worth more than $0.01... They are mostly zinc now.
---
Shog9 If I could sleep forever, I could forget about everything...
-
Exactly my point. If NASA is off by 2 degrees, the astronauts overshoot the moon by hundreds of kilometers. (Yes. An American using metric...shocking isn't it? :-D) David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
-
David Stone wrote: Besides...millions of people walk that street every day. Yeah, but people are soft and squishy. And they mostly wear shoes. Very considerate of things they walk on, people. Unlike pennies. When's the last time you saw a penny wearing shoes? I thought so. Inconsiderate little copper-colored bastards...
---
Shog9 If I could sleep forever, I could forget about everything...
Shog9 wrote: Inconsiderate little copper-colored bastards... Josh, let me give you the name of a friendly little phsciatrist that I'm sure lives locally to you... he's called Al. Co'hol. I think you should go and see him right away and not come back till tomorrow... :rolleyes:
David Wulff http://www.davidwulff.co.uk
One 18yrs male, red and white, good condition; daily servicing required. £500 collect ono.
-
David Stone wrote: Besides...millions of people walk that street every day. Yeah, but people are soft and squishy. And they mostly wear shoes. Very considerate of things they walk on, people. Unlike pennies. When's the last time you saw a penny wearing shoes? I thought so. Inconsiderate little copper-colored bastards...
---
Shog9 If I could sleep forever, I could forget about everything...
That's my point. I'm saying that the penny goes into the concrete because it's hard and it hits a hard object at a high downward velocity. Thus David Wulff's analogy to throwing rocks at a mountain is flawed because we will be able to move a large rock with a (relatively) small satellite. Besides, a mountain is anchored to the earth. An asteroid is anchored to nothing but itself. David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
-
David Wulff wrote: And if a rock knocks us? ...? We're trying to prevent the rock from knocking us. :| But what you're suggesting is chaos theory. The idea that a little thing here accumulates to a huge thing later due to a bunch of unrelated things happening and giving you a massive result. You're saying that if we hit the rock here, it could eventually go so far of course as to kill all life on another planet, or blow up a star, or hit the Vulcan spaceships passing by earth because we're so stupid that we're shooting asteroids...right? David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
David Stone wrote: But what you're suggesting is chaos theory No it's not - not at all. As you said youself, that relies on unrelated events. David Stone wrote: We're trying to prevent the rock from knocking us. :| I think you missed my point. :suss:
David Wulff http://www.davidwulff.co.uk
One 18yrs male, red and white, good condition; daily servicing required. £500 collect ono.
-
Shog9 wrote: Inconsiderate little copper-colored bastards... Josh, let me give you the name of a friendly little phsciatrist that I'm sure lives locally to you... he's called Al. Co'hol. I think you should go and see him right away and not come back till tomorrow... :rolleyes:
David Wulff http://www.davidwulff.co.uk
One 18yrs male, red and white, good condition; daily servicing required. £500 collect ono.
Funny you should mention him; i've scheduled an appointment later this evening. At one time, they would let him come into work and assist in on-the-job therapy, but heath care just isn't what it used to be here...
---
Shog9 If I could sleep forever, I could forget about everything...
-
Yeah, i know, i was just playing the part of resident moron, since i've nothing intelligent to contribute and am bored. Personally, i think we should get organized and all throw rocks at a mountain until we've moved the *earth* out of the path of the asteroid...
---
Shog9 If I could sleep forever, I could forget about everything...
How's next Tuesday night at 7:00pm sound? :-D David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
-
That's my point. I'm saying that the penny goes into the concrete because it's hard and it hits a hard object at a high downward velocity. Thus David Wulff's analogy to throwing rocks at a mountain is flawed because we will be able to move a large rock with a (relatively) small satellite. Besides, a mountain is anchored to the earth. An asteroid is anchored to nothing but itself. David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
Yeah, i know, i was just playing the part of resident moron, since i've nothing intelligent to contribute and am bored. Personally, i think we should get organized and all throw rocks at a mountain until we've moved the *earth* out of the path of the asteroid...
---
Shog9 If I could sleep forever, I could forget about everything...
-
But I don't think energy has anything to do with how a penny imbeds itself in cement. I believe that is an issue of velocity. Which would lead to the penny being imbedded in the cement. David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
Every movement needs a transformation of energy. I don't believe a penny would stick in the cement if you through it of the ESB. If it would the american cement would be kind of crap ;)!
-
How's next Tuesday night at 7:00pm sound? :-D David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
-
David Stone wrote: But what you're suggesting is chaos theory No it's not - not at all. As you said youself, that relies on unrelated events. David Stone wrote: We're trying to prevent the rock from knocking us. :| I think you missed my point. :suss:
David Wulff http://www.davidwulff.co.uk
One 18yrs male, red and white, good condition; daily servicing required. £500 collect ono.
David Wulff wrote: I think you missed my point. No. You said "What if a rock knocks us?" I said "We're trying to prevent the rock from knocking us." I got your point, I'm just saying that that's the whole purpose of shooting a satellite at the rock...so that we can shoot satellites at things that try to actually come at us. David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
-
Prolly not enough time for me to find a mountain. I could throw beer bottles at a local bluff though... :)
---
Shog9 If I could sleep forever, I could forget about everything...
Good idea. Maybe then we can warm up Alaska by knocking earth closer to the sun. David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
-
Right, but it is a mountain that is moving through space along a certain path. If you hit it just right, you can slightly (very very very slightly) change its path. Over the course of time, that small change becomes continuously more significant. Ryan Johnston
As long as they don't smash into it infront your right.
-
A satellite may weight 1-5 tons I guess. A asteriod can be as big as our moon or bigger (Pluto is seen as a kind of asteriod by many scientists). So the mass of most asteroids that could be dangerous for us is so high that it's like throwing stones against mountains.
Most asteroids aren't very big. It only takes an asteroid 2 miles across to end life on the planet. We're much more concerned about the more numerous small asteroids (100 yards in diameter and larger) than some kind of Pluto-sized asteroid. Even a 100-yard asteroid could do massive damage. It's not merely a matter of the mass of the asteroid, but also, it's enormous speed. The velocity allows it to do a lot more damage than you would expect from an object of that size/mass. So, a 1-5 ton satellite versus a 100-yard asteroid is not the same as a stone against a mountain. ------------------------------------------ When I was a kid, I used to pray every night for a new bicycle. Then I realized that the Lord, in his wisdom, didn't work that way. So I just stole one and asked him to forgive me. - Emo Phillips
-
We must always remember that we are an infitismal part of an infinite picture - making the slightest changes could damage the larger system irepairibly. I don't think we should go jumping into everything feet first. Think Godzilla - same thing, just not sci fi. If (and maybe when) something becomes a threat to use then we will be forced to take action to try to prevent it - we are required to through our instinct to survive - but until then is is nothing more than vandalism, which could have a huge unforseen effect.
David Wulff http://www.davidwulff.co.uk
One 18yrs male, red and white, good condition; daily servicing required. £500 collect ono.
Cupid the whole world a little arrow. Can't we all just get along? Todd Smith
-
A satellite may weight 1-5 tons I guess. A asteriod can be as big as our moon or bigger (Pluto is seen as a kind of asteriod by many scientists). So the mass of most asteroids that could be dangerous for us is so high that it's like throwing stones against mountains.
Still, there's no reason that this experiment can't work. The relative masses involved isn't an issue; the energy transferred from the satellite to the asteroid is. For all practical purposes, the system formerly known as the satellite will become one with the system that is the asteroid, and it will impart its energy to the new configuration. At high enough speeds, along the proper path, a measurable change in the path of the asteroid could well result. It's the speed that matters (as in Ek = .5mv2 ). "Knock, knock." "Who's there?" "Recursion." "Recursion who?" "Knock, knock..."
-
But if a penny dropped from the Empire State Building can imbed itself in the cement on the sidewalk, then this small object should be able to move an asteroid...right? David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
David Stone wrote: a penny dropped from the Empire State Building can imbed itself in the cement on the sidewalk, I belive that's actually an urban myth. :-) Regardz Colin J Davies
Sonork ID 100.9197:Colin
You are the intrepid one, always willing to leap into the fray! A serious character flaw, I might add, but entertaining. Said by Roger Wright about me.
-
Don't they realize that rox have feelings also !! :mad: Regardz Colin J Davies
Sonork ID 100.9197:Colin
You are the intrepid one, always willing to leap into the fray! A serious character flaw, I might add, but entertaining. Said by Roger Wright about me.
-
Still, there's no reason that this experiment can't work. The relative masses involved isn't an issue; the energy transferred from the satellite to the asteroid is. For all practical purposes, the system formerly known as the satellite will become one with the system that is the asteroid, and it will impart its energy to the new configuration. At high enough speeds, along the proper path, a measurable change in the path of the asteroid could well result. It's the speed that matters (as in Ek = .5mv2 ). "Knock, knock." "Who's there?" "Recursion." "Recursion who?" "Knock, knock..."
Agreed, But there are a few other issues involved, Like the ability to put a good spin on the asteroid. The more the spin the better it will break when it reaches our atmosphere. Regardz Colin J Davies
Sonork ID 100.9197:Colin
You are the intrepid one, always willing to leap into the fray! A serious character flaw, I might add, but entertaining. Said by Roger Wright about me.
-
David Wulff wrote: I think you missed my point. No. You said "What if a rock knocks us?" I said "We're trying to prevent the rock from knocking us." I got your point, I'm just saying that that's the whole purpose of shooting a satellite at the rock...so that we can shoot satellites at things that try to actually come at us. David Stone It seemed similar to someone saying, "Would you like to meet my knife collection?" Ryan Johnston on Elaine's sig
David Stone wrote: I got your point No you didn't, obviously. :) You said "if we knock the rock a bit, we're just going to send it somewhere far off into space" - i.e. who the f**k cares? I was posing to you to the exact same thing in reversed terms. But hey, it is night time and I am in a really really bad mood (not your fault, don't worry), so I think it is best we agree to disagree on principles here and leave it at that.
David Wulff http://www.davidwulff.co.uk
One 18yrs male, red and white, good condition; daily servicing required. £500 collect ono.
