Science questions

[Fan from VT]

Here is a question to ponder that I give my students.



Name an activity that would be awesome with no friction.

Hockey. Basically the logical extreme of a currently awesome activity.

Now i'm not sure how it would work. If you could still dig into the ice, then it would just be the same activity but at super-speeds.

But, what if the frictionless playing surface could not be dug into to create traction (based, I believe, on force normals and not friction)? Well, then the entire sport would change. Puck would never stop, and all of your actions would be based on the forces gained by pushing off the boards and hoping your trajectories were correct...holy cow. Imagine that? all 10 players basically pinballing at high speeds off the boards trying to anticipate puck movement to push themselves into beneficial positions while the puck pings around? Goalies would drift away due to the slightest contact, and it would be a whole sub-strategy to push them back into place...yikes. totally different sport.

[fairweatherfan]

Here is a question to ponder that I give my students.



Name an activity that would be awesome with no friction.

Thanksgiving with the in-laws 

[Eja117]

Here is a question to ponder that I give my students.



Name an activity that would be awesome with no friction.

I was under the impression that technically everything deals with friction all the time. Like if I push a space probe through space since there are about 100 atoms of hydrogen per cubic foot out there it would still technically experience both friction and the pull of gravity.

Maybe I'm taking this too seriously

[wdleehi]

Here is a question to ponder that I give my students.



Name an activity that would be awesome with no friction.

Hockey. Basically the logical extreme of a currently awesome activity.

Now i'm not sure how it would work. If you could still dig into the ice, then it would just be the same activity but at super-speeds.

But, what if the frictionless playing surface could not be dug into to create traction (based, I believe, on force normals and not friction)? Well, then the entire sport would change. Puck would never stop, and all of your actions would be based on the forces gained by pushing off the boards and hoping your trajectories were correct...holy cow. Imagine that? all 10 players basically pinballing at high speeds off the boards trying to anticipate puck movement to push themselves into beneficial positions while the puck pings around? Goalies would drift away due to the slightest contact, and it would be a whole sub-strategy to push them back into place...yikes. totally different sport.

How do the players hold onto the sticks if their is no friction?  Or would sticks just be flying everywhere? 

And forget about controlling the puck.  There is no friction between the puck and stick.


And it would be fun watching players get up after they fall down trying to climb over the frictionless wall. 

[wdleehi]

Here is a question to ponder that I give my students.



Name an activity that would be awesome with no friction.

Thanksgiving with the in-laws 

I fear for the person who has to try and catch the carving knife after is slips from the carvers fingers. 

[Eja117]

What I'm hearing at this moment is that everything that happens on Earth has friction, and I'm not as sure about the rest of the universe

[barefacedmonk]

I watched an hour long show on NatGeo TV on this topic.

http://natgeotv.com/uk/aftermath/videos/earth-stopped-spinning

woah that was freaky

I tried to find that complete episode...somebody has uploaded it on YouTube but it has been dubbed in some foreign language...Russian, I think.

http://www.youtube.com/watch?v=iL5IlSqRWqQ

http://www.youtube.com/watch?v=YsJkk-89npI

http://www.youtube.com/watch?v=jquyNwoOjSM

http://www.youtube.com/watch?v=lWi7IrLxSCo

[Fan from VT]

Here is a question to ponder that I give my students.



Name an activity that would be awesome with no friction.

Hockey. Basically the logical extreme of a currently awesome activity.

Now i'm not sure how it would work. If you could still dig into the ice, then it would just be the same activity but at super-speeds.

But, what if the frictionless playing surface could not be dug into to create traction (based, I believe, on force normals and not friction)? Well, then the entire sport would change. Puck would never stop, and all of your actions would be based on the forces gained by pushing off the boards and hoping your trajectories were correct...holy cow. Imagine that? all 10 players basically pinballing at high speeds off the boards trying to anticipate puck movement to push themselves into beneficial positions while the puck pings around? Goalies would drift away due to the slightest contact, and it would be a whole sub-strategy to push them back into place...yikes. totally different sport.

How do the players hold onto the sticks if their is no friction?  Or would sticks just be flying everywhere? 

And forget about controlling the puck.  There is no friction between the puck and stick.


And it would be fun watching players get up after they fall down trying to climb over the frictionless wall. 

Holding sticks would be hard...they'd have to tape them to their gloves.

But hitting the puck wouldn't be a problem, as that is not based on friction necessarily, but rather directly opposing forces.

[BASS_THUMPER]

Here is a question to ponder that I give my students.



Name an activity that would be awesome with no friction.

FLY

[Eja117]

Wouldn't gravity hold at least a few things together? I mean I don't think I'm just going to slip off my couch if friction ended, right? I mean I'm in the groove right now plopped right it where i belong

[Eja117]

http://www.txchnologist.com/2011/the-thorium-laser-the-completely-plausible-idea-for-nuclear-cars

This is amazing.  Bring it on. Nuclear cars would be da bomb

[Eja117]

They found a new land mammal this week (admittedly it's pretty small). That got me thinking. In theory if you find a new animal that you had no idea existed and there is no record of it in the fossil record....is that evidence of creationism? If that's not what would be?

[Boris Badenov]

Here is a question to ponder that I give my students.



Name an activity that would be awesome with no friction.

Hockey. Basically the logical extreme of a currently awesome activity.

Now i'm not sure how it would work. If you could still dig into the ice, then it would just be the same activity but at super-speeds.

But, what if the frictionless playing surface could not be dug into to create traction (based, I believe, on force normals and not friction)? Well, then the entire sport would change. Puck would never stop, and all of your actions would be based on the forces gained by pushing off the boards and hoping your trajectories were correct...holy cow. Imagine that? all 10 players basically pinballing at high speeds off the boards trying to anticipate puck movement to push themselves into beneficial positions while the puck pings around? Goalies would drift away due to the slightest contact, and it would be a whole sub-strategy to push them back into place...yikes. totally different sport.

How do the players hold onto the sticks if their is no friction?  Or would sticks just be flying everywhere? 

And forget about controlling the puck.  There is no friction between the puck and stick.


And it would be fun watching players get up after they fall down trying to climb over the frictionless wall. 

Holding sticks would be hard...they'd have to tape them to their gloves.

But hitting the puck wouldn't be a problem, as that is not based on friction necessarily, but rather directly opposing forces.

Actually even hitting the puck could be much more of a problem. If you swung the stick forward, your body would move backward with an equal and opposing force.

I think you would be unable to exert a force on anything unless you were braced (against a wall, for example), or had momentum from another source. Skates would help, but not as much as they do now.

[BballTim]

Here is a question to ponder that I give my students.



Name an activity that would be awesome with no friction.

Hockey. Basically the logical extreme of a currently awesome activity.

Now i'm not sure how it would work. If you could still dig into the ice, then it would just be the same activity but at super-speeds.

But, what if the frictionless playing surface could not be dug into to create traction (based, I believe, on force normals and not friction)? Well, then the entire sport would change. Puck would never stop, and all of your actions would be based on the forces gained by pushing off the boards and hoping your trajectories were correct...holy cow. Imagine that? all 10 players basically pinballing at high speeds off the boards trying to anticipate puck movement to push themselves into beneficial positions while the puck pings around? Goalies would drift away due to the slightest contact, and it would be a whole sub-strategy to push them back into place...yikes. totally different sport.

How do the players hold onto the sticks if their is no friction?  Or would sticks just be flying everywhere? 

And forget about controlling the puck.  There is no friction between the puck and stick.


And it would be fun watching players get up after they fall down trying to climb over the frictionless wall. 

Holding sticks would be hard...they'd have to tape them to their gloves.

But hitting the puck wouldn't be a problem, as that is not based on friction necessarily, but rather directly opposing forces.

  It would have to be a perfectly inelastic collision, wouldn't it? Otherwise there's friction.

  Say you do something in space, where something or someone is launched from point A to point B and they (Or it) launched from point A with magnetic propulsion so you don't touch anything. That would probably be fairly frictionless.

[angryguy77]

Here is a question to ponder that I give my students.



Name an activity that would be awesome with no friction.

Marriage