Testing If You Can Blow Your Own Sail
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Top Comments (10)
seated for science class
You now know 7 amazing new things and that’s cooler than magic! Get the CrunchLabs Build Box with two FREE boxes here- https://crunchlabs.com/teaser
As someone graduated in physics, I have never seen such a clear explanation of what the coriolis effect actually is. Amazing.
If only school were as entertaining as Mark's videos...
1st time learning the difference between a Cyclone and a Hurricane. I thought one is air, the other is water based.
Regarding the backpack: when you study vibrations in engineering, you learn that there's a specific frequency in which you can vibrate a spring-mass system where it will not transfer that movement to the mass. That's why there's a "sweet spot", and all the people in the commercials were running with that sweet spot frequency, where the backpack barely moved even while they were running (i.e. the movement of the person was barely transfered to the backpack). This depends on the spring constant of the springs used, and on the mass of the system (the backpack and whatever's inside it). So if Mark were to put more weight in the backpack, he'd have to find a different running frequency in order to get the same effect. Thanks for sharing all these cool experiments and knowledge with us, Mark! You're awesome!
Mark single handedly has educated more kids in America in the last year than the entire American educational system combined. 👍👍
Now that I am a dad some of my perspectives have changed and I couldn't be more glad that there is such a person as Mark Rober. Never change Mr. Rober! You are beloved.
I have been paying for my grandson to get the Crunch Labs boxes for over a year now and he gets so excited when a new one arrives. Worth every penny.
I've watched this video several times now, and have been around for a few decades. I JUST realized from watching this that Ecuador is at the equator, and that Ecuador is in fact the Spanish word for equator. Thanks for the knowledge, Mark!
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Top Comments (10)
seated for science class
You now know 7 amazing new things and that’s cooler than magic! Get the CrunchLabs Build Box with two FREE boxes here- https://crunchlabs.com/teaser
As someone graduated in physics, I have never seen such a clear explanation of what the coriolis effect actually is. Amazing.
If only school were as entertaining as Mark's videos...
1st time learning the difference between a Cyclone and a Hurricane. I thought one is air, the other is water based.
Regarding the backpack: when you study vibrations in engineering, you learn that there's a specific frequency in which you can vibrate a spring-mass system where it will not transfer that movement to the mass. That's why there's a "sweet spot", and all the people in the commercials were running with that sweet spot frequency, where the backpack barely moved even while they were running (i.e. the movement of the person was barely transfered to the backpack). This depends on the spring constant of the springs used, and on the mass of the system (the backpack and whatever's inside it). So if Mark were to put more weight in the backpack, he'd have to find a different running frequency in order to get the same effect. Thanks for sharing all these cool experiments and knowledge with us, Mark! You're awesome!
Mark single handedly has educated more kids in America in the last year than the entire American educational system combined. 👍👍
Now that I am a dad some of my perspectives have changed and I couldn't be more glad that there is such a person as Mark Rober. Never change Mr. Rober! You are beloved.
I have been paying for my grandson to get the Crunch Labs boxes for over a year now and he gets so excited when a new one arrives. Worth every penny.
I've watched this video several times now, and have been around for a few decades. I JUST realized from watching this that Ecuador is at the equator, and that Ecuador is in fact the Spanish word for equator. Thanks for the knowledge, Mark!