Ha, indeed. I've noticed while washing dishes that even the mildest force from my hands in a glass can squirt soapy water a surprising distance. Usually onto me.
Years ago, babysitting a 4th grader. He was on his computer up in the loft; i was in the kitchen getting him an after school snack. There was yogurt. I was too lazy to run it up the stairs. He might have been okay to run down to the kitchen but I cleverly said: here, I'll toss it up to you. He stood at the loft railing. I tossed. Lousy toss. It just grazed his fingertips.... then smacked down to land exactly upright on the wood floor of the living room. This was one of those old Yoplaits with the truncated cone shaped (frustum) containers, narrower at the top with a foil seal. Yogurt absolutely freakin' GEYSERED straight up and out, speckling a swath of the slanted ceiling all the way up to the loft sky windows and leaving pink dots of yogurt high up on the walls several feet into the living room. It was a fabulous physics teaching moment that amused us both greatly. (His mom was a math/sci teacher and an astonishingly good sport when we described the incident later).
He's now in his 30s but we still LOL about the yogurt occasionally. He and his mom will get a kick out of this fine post, I will send it to them! 🤗⛲😄
Ha, what a fabulous story!! What's even more interesting is the fact that Yoghurt is a highly viscous substance, which would normally dampen the Worthington Jet effect, but perhaps the tapering at the top of the container made for a kind of newtons cradle effect, and the energy shockwave might have propagated from the bottom to the top before escaping as a geyser.
My man, you basically invented the Yoghurt Volcano!! 😂
Sorry for raining on your parade: "There is suddenly an immense amount of force attracting all the surrounding matter back in to fill that void, which nature abhors." Nature abhors the vacuum formed by a pump at the top of a 40 foot water pipe, but only until the water level reaches about 30 feet.
Ha, indeed. I've noticed while washing dishes that even the mildest force from my hands in a glass can squirt soapy water a surprising distance. Usually onto me.
Years ago, babysitting a 4th grader. He was on his computer up in the loft; i was in the kitchen getting him an after school snack. There was yogurt. I was too lazy to run it up the stairs. He might have been okay to run down to the kitchen but I cleverly said: here, I'll toss it up to you. He stood at the loft railing. I tossed. Lousy toss. It just grazed his fingertips.... then smacked down to land exactly upright on the wood floor of the living room. This was one of those old Yoplaits with the truncated cone shaped (frustum) containers, narrower at the top with a foil seal. Yogurt absolutely freakin' GEYSERED straight up and out, speckling a swath of the slanted ceiling all the way up to the loft sky windows and leaving pink dots of yogurt high up on the walls several feet into the living room. It was a fabulous physics teaching moment that amused us both greatly. (His mom was a math/sci teacher and an astonishingly good sport when we described the incident later).
He's now in his 30s but we still LOL about the yogurt occasionally. He and his mom will get a kick out of this fine post, I will send it to them! 🤗⛲😄
Ha, what a fabulous story!! What's even more interesting is the fact that Yoghurt is a highly viscous substance, which would normally dampen the Worthington Jet effect, but perhaps the tapering at the top of the container made for a kind of newtons cradle effect, and the energy shockwave might have propagated from the bottom to the top before escaping as a geyser.
My man, you basically invented the Yoghurt Volcano!! 😂
Fascinating.
Put that on my epitaph.
“Here lies Nicholas Kircher: Fascinating.”
Haha! This cracked me up. The physics of coffee is exactly what I like to study first thing in the morning.
thanks for sharing the physics !
here is the latest post from me
https://1minuteproductivity.substack.com/p/the-power-of-words?r=3alkxa
Sorry for raining on your parade: "There is suddenly an immense amount of force attracting all the surrounding matter back in to fill that void, which nature abhors." Nature abhors the vacuum formed by a pump at the top of a 40 foot water pipe, but only until the water level reaches about 30 feet.
Ah yes, thats thanks to humanity's oldest enemy: gravity!