Your video, AquaSpinner Waterslide - Europe's first Rotating Slide, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

I must disagree.

First, it's precession, not procession, paired with the "caster effect" and static friction. It's a self correcting system that only works when in forward motion.
This nonsense with counter rotating wheels countering the gyroscopic effect ignores the fact that only the forward rotating wheels are using friction to direct the path of the bicycle based on their angles. It's not JUST the gyroscopic effect, that only determines the resistance to angular change, it's friction directed by gyroscopic precession and the self correcting caster effect. Come on.

Nobody knows how we ride bikes?! (A different claim from we don't know why they can remain upright when ghost ridden) Nonsense, it's balance plain and simple. If you don't keep the center of gravity exactly above the contact points with the ground, you tilt. When the centrifugal force exceeds static friction of the tires you slide out or when gravity exceeds the opposing centrifugal force caused by turning, you fall. Try turning your bike but staying exactly upright, no lean. Now, when you heal, try leaning without turning, lock the wheel straight, you'll fall again. It's multiple forces in concert.

I think a decent physics teacher would wipe the floor with this. It ignores so much to make these "we just don't know" claims.

I see 3 times as much rotating mass. Plus the exhaust lifter has to be under spring tension and lifting that every compression and exhaust cycle is going to add more losses.

Also..."your exhaust lifter bearings are shot. You're going to need a full bottom end rebuild." :-(

It is interesting that it SHOULD be 50% chance but it's more like 1% for some reason. probably because any bit of resistance from a wrong angle, rotation, wrong port, can feel like it's because you have it backwards, so you turn it around, then it IS backward... just a poor design that is enduring.

This is a cool jigsaw puzzle site. You won't need to rotate any pieces. You can also upload your favorite photo and make it a puzzle. You can change the way the pieces are cut and select how many pieces you want from 20 to 500. I usually do 100.

https://thejigsawpuzzles.com/

whether it rotates 100 degrees then changes direction, or spins 360, it's still rotating:)

Your video, A stop sign rotates in it's place due to strong wind, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

It looks like it's wobbling back and forth, not rotating.

Your video, relative sidereal rotation periods of planets in 2-D, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

This achievement has earned you your "Pop Star" Level 1 Badge!

Brother? Really? Yeah, you aren't a bit racist, just stuck in the 70's (when that would still be considered racist, but at least contemporarily racist).

One bad apple.....spoils the bunch is the rest of that sentence.
We see nothing but bad apples. There are no good apples in the bunch, because they left those bad apples in the bunch for decades, actually recruiting them in many cases (see Florida, who recruits cops fired for violence).

Pablo Escobar did nice things, he was a bad apple. Not being the most racist, accusatory, disrespectful, violent assholes possible at every turn does not make a good apple. Turning in, and testifying against his fellow thuggish cops whenever they get violent, racist, or abusive until those cops are in prison instead of on the force, that makes a good apple. They don't exist.

The agreement between law enforcement and citizens starts with law enforcement's obligations.
First is to enforce the law evenly and fairly, not use it as a club for their personal prejudices. Second is their obligation to police themselves with greater zeal and less leeway than they give citizens.
Until they fulfil these obligations, citizens have no obligation to be civil to them. They shirked their obligations first, and theirs came with authority and benefits they retain even though they fail at their obligations every single time.
Civility with police in no way protects you from abuse....it often does nothing but give them excuses to violate citizens further. Any first year lawyer can tell you, there's no benefit to speaking with them at all.

Funny how you think finding one instance where being friendly ended with just a ticket and search you insist it works every time despite the numerous, uncountable examples proving that's simply not true shown to you daily.

"The race issue" (as if it's only one issue) if at the forefront because Republicans have become so outrageously overtly racist with support from the top down that the entire planet has had enough and are marching against the racist, murderous police. We know who is on who's side. It's clear. No one is accepting your word on the subject. We know you have said clearly that you support lying if it helps your cause or proves your point.

BTW, thanks for getting last night's bobknight33 off the keyboard. That one really needs more practice before being put in rotation, he didn't sound like the bobknight33 group in any way. Edit:oops, I hadn't read your other post this morning. These do not appear to be the same person posting in your name 1 1/2 hours apart....shift change comrades?

*personal experience crashing/rolling...too much of it

I'm no doctor, but I've been in dozens of what normal people would call wrecks/accidents thanks to off road, and multiple rolls. The lateral (to the side) forces in a roll were never close to direct impact forces...not in the same ballpark. It's all about maximum force/time. Rolls are nearly always comparatively slow, drawn out rotational acceleration, crashes are quick, near instantaneous. That makes an enormous difference. Rolling at 50mph, you might get hurt. Hitting a wall at 50mph, you're lucky if you survive.
Rolling looks scary until you've done it. Dead stop crashing is scary.

Edit: I once watched a truck roll 10 times at 100mph + through a fence...driver walked away and raced later that day. That speed into a boulder, he would be dead, no question.

Your video, The Bizarre Behavior of Rotating Bodies, Explained, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

Your video, Frozen Ice Disk Looks Mesmerizing While Rotating on Water, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

Self *promote because without the thumbnail, the title makes little sense.
Matt Tomasello uses broken skateboards to create boards capable of impossible tricks....hinged boards, sideways boards, rotating trucks, even rotating boards. His skating is just as inventive.