Speed bubbles

[Otakurogue]

So in the lost metal we find out that as long as your touching the bubble you are included so why can't someone make a bubble next to some one and whack them so fast they become part of the mists? Or would hitting them include them at the moment of contact but then they would be slow again as soon as you broke contact?

Edited April 27 by Otakurogue

[Trusk'our]

14 minutes ago, Otakurogue said:

So in the lost metal we find out that as long as your touching the bubble you are included so why can't someone make a bubble next to some one and whack them so fast they become part of the mists? Or would hitting them include them at the moment of contact but then they would be slow again as soon as you broke contact?

Welcome to the 17th Shard!

I think that you couldn't add to the extra kinetic energy of your hits with a Speedbubble, since we've seen that bullets that pass out of Speedbubbles slow down. You could still whack them a lot of times though, so it would still be a very dangerous tactic for your opponents.

Hope to see your opinion on some of my posts 

[alder24]

9 minutes ago, Otakurogue said:

So in the lost metal we find out that as long as your touching the bubble you are included so why can't someone make a bubble next to some one and whack them so fast they become part of the mists? Or would hitting them include them at the moment of contact but then they would be slow again as soon as you broke contact?

Speed bubbles break a lot of physics. In this case, I think two options are possible:

1. in the moment of physical contact between Misting and his opponent, his opponent is considered to be inside the speed bubble, making the punch be with normal force
2. the speed bubble itself absorb the excess force (like it does with absorbing redshift), making the punch be with normal force

Spoiler

Steeldancer (paraphrased)

 According to General Relativity, there should be spatial distortion in speed bubbles. So, why does no one notice it?

Brandon Sanderson (paraphrased)

There is spatial distortion in speed bubbles, that's why bullets are refracted when they enter a bubble. However, I played with it a bit, and ignore the redshift that should happen. The barrier of the bubble absorbs it, otherwise everyone would just be irradiated. 

FanX Spring 2019 (April 19, 2019)

 

Done some more digging, the second option is the true one, the bubble absorbs excess momentum:

Spoiler

Kurkistan

If Wayne was inside of a speed bubble and punches somebody who's standing outside it, what's happening with his fist and them: are they like sucked into the bubble, or what?

Brandon Sanderson

So, I have... So exiting a speed bubble, while it's going, has weird ramifications on lots of things. It would be really hard to punch somebody through a speed bubble--

Kurkistan

So would the surface like distend around his fist--

*Illustrates with fist "stretching out" invisible film*

Brandon Sanderson

It's going to steal your momentum, but if you actually managed to do it, then-- yes. Anything in the speed bubble that's touching through is counted as being as part of the speed bubble.

Kurkistan

Okay, so his bubble would end here *Draws invisible surface in the air* and his fist would be out there *Illustrates by "punching" arm through the fake surface, demonstrating the fist extending past the bubble while he arm is within*, but still fast?

Brandon Sanderson

Yes.

Kurkistan

Oh okay, thank you.

Brandon Sanderson

That's how I've imagined it so far.

Kurkistan

But the bubble does end at [the same place still, with the fist extending out past its boundary].

Brandon Sanderson

The bubble does end, yes.

Kurkistan

*Makes pleasantries and goes to leave*

Brandon Sanderson

And when you're punching through, it's going to-- your momentum is gonna'-- you're going to lose momentum and get a ricochet, because you're lurching from-- *notices Kurkistan (very foolishly) acting like he's about to leave* anyway... I'll let you figure that one out on your own.

Words of Radiance Philadelphia signing (March 21, 2014)

 

And welcome to the Shard  

[Quantus]

23 minutes ago, Otakurogue said:

So in the lost metal we find out that as long as your touching the bubble you are included so why can't someone make a bubble next to some one and whack them so fast they become part of the mists? Or would hitting them include them at the moment of contact but then they would be slow again as soon as you broke contact?

Most things in the Cosmere are heavily influenced by Intent.  And a person or object is either inside the Bubble or Not as a Cognitive state thing.  So for the purposes of clubbing somebody outside the bubble, I think you'd have to cognitively "Step Out" of Bubble timeframe as part of that Intent of Violence. In other words the Bubble pops in the instant before impact and the strike happens at normal speeds with some lurching from one timeframe to the other.  (though the Slider might seem to appear from nowhere). 

 

Quote

 

Kurkistan

If you are standing inside of a time bubble, and throw a spear out of the bubble, what happens to that spear as it traverses the border of the bubble? Are different parts of the spear ever in different "time zones," going fundamentally different speeds?

On that line of reasoning, what would happen to a train and its occupants if Marasi stood next to railroad tracks holding up a Cadmium bubble while that train sped by?

Brandon Sanderson

In general, a large object going through a time bubble is not going to notice. An object is either in or out, and it depends in part on how the object views itself. People inside the train would be inside of its influence, and wouldn't notice the bubble. The spear would go from one to the other, but would never be in both.

17th Shard Forum Q&A (Sept. 26, 2012)