Science questions

[Boris Badenov]

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



Name an activity that would be awesome with no friction.

Marriage

Awesome. TP.

[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.

  The problem is the most obvious way to remove friction (outer space) also removes gravity. Something earth-bound that happened in a vacuum and relied on magnetic repulsion to avoid contact would work, but you'd be getting closer to real hockey.

[BballTim]

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



Name an activity that would be awesome with no friction.

Marriage

  That has "be careful what you wish for" written all over it. Imagine all of the compromises you'd need to make to avoid that friction...

[Ogaju]

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



Name an activity that would be awesome with no friction.

Marriage

  That has "be careful what you wish for" written all over it. Imagine all of the compromises you'd need to make to avoid that friction...

Compromise still creates friction, so meh on that one.

[BballTim]

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



Name an activity that would be awesome with no friction.

Marriage

  That has "be careful what you wish for" written all over it. Imagine all of the compromises you'd need to make to avoid that friction...

Compromise still creates friction, so meh on that one.

  Yes, but if the compromise removes the friction in the marriage then the friction would be internal to you.

[BballTim]

  If you had some non-traumatic stopping mechanism, something that involved falling (such as sky diving) would probably be more awesome without friction. No high speed wind blowing in your face and you'd continue to speed up until (hopefully shortly before) the end of the jump.

[Celtics4ever]

https://www.youtube.com/watch?v=BKKa_OlSXgQ

[SHAQATTACK]

I got a cool old Chemistry set form the 60's.   

oh.....I have an old physics lab set from the same era.

matter of fact ,  I was just showing my wife the Wilson thermal motor from that lab.   It uses pure heat from intense light source ,then turns the light heat to direct mechanical motion .no solar cell or batt.

I like science.

[Bahku]

TP for anyone that can tell me, (without an internet search), what part of the human body uses toroidal vortices? (Be specific)

[CelticConcourse]

TP for anyone that can tell me, (without an internet search), what part of the human body uses toroidal vortices? (Be specific)

The <3

[Bahku]

TP for anyone that can tell me, (without an internet search), what part of the human body uses toroidal vortices? (Be specific)

The <3

I was looking for a little more specificity, (left ventricle), but since you are the only reply, you get the TP.