Sir Walter Lewin Lecture Energy Conservation #ytshorts #shorts

Sir Walter Lewin Lecture Energy Conservation
#walterlewin #physics #experiment #potentialg #science

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We gratefully acknowledge his insightful teachings and contributions to physics education.

Sir Walter Lewin Lecture Energy Conservation
Sir Walter Lewin Lecture Energy Conservation
Sir Walter Lewin Lecture Energy Conservation

[Goji_]

"You would have to do this gor 48 hours in a row to heat up my bath-" lmao

[thethinkdifferentman]

The shaking table is sucking some watts😂

[Scaliad]

Stored energy and the many ways we get it to the grid is a magical thing...

Try replacing the grid (go off-grid) and learn just how magical the grid really is!

[zuruumi]

Btw., a resting adult's power output is roughly 100W, while maximal sustained output is 300-400W (minutes) or 2kW (burst: sprinting, etc.)

[xliquidflames]

My 8th grade science teacher had one of these hand cranked generators bolted to the lab counter top. He had two bare wires coming out of it. He would have a kid pinch one of the bare wires between their thumb and index finger. Then we would make a human chain holding wrists that looped around the room and came back to the generator. The last kid in the chain would grab the other bare wire. Then he would turn the crank really fast for half a turn. We would feel the tingle propagate down the human chain. Then there was the one class clown that loved to just grab both wires himself and get a quick shock just for laughs. The 90s were so fun. And that science teacher, Mr. Whitaker, was such a great teacher. He also had spent his own money and his own time to install a dish on the roof so he could download images from the GOES 8 weather satellite and teach us about weather and space. I think they're up to GOES-19 or 20 now. But man, he was a great teacher.

[jimwednt]

I started using portable generators I was surprised at how much mechanical work it takes to produce electricity to use power tools and an air compressor.

[Supernaturalcloak]

It's must feel weird to spin freely with 1, then feel the resistance with the many.

[sonlondoran]

So when the generator is given a load of one lamp, the load is not too heavy to rotate. So the more lamps, the greater the load. 👍🙏🙏

[robertgift]

I would turn the wheel the opposite direction.

[gnamp]

I suspect they lit up far more than he was expecting ie not at all

[OGLOC]

You would be surprised at how difficult this simple concept is for people to understand

[exiledred]

im actually interested how much winding could charge up a phone

[parpar]

LED's are the standard now sooo. Let's see the comparison All Star.

[ryanthacker]

Wouldn’t this be an example of Lenz’s Law?

[brendanfleming]

Sir Walter Lewin? Nah, just Walter Lewin, Dutch people people don't do nobility.

[hassearezoomamde]

What if you put a new transformator on his output and connect that to the lamps? Why a transformator can rise that amplitude but not power?
I have an idea with crystal. Take cylindric crystal ( amethis) drill hole in it. Inside ths cannal incert mercury ( the metal) and seal it withcitcle shape lock. Connect the psoitive side to one side and that the outout in another side. The power or effect will increase 100 times.

[gast]

Use your legs instead of your arms. Never understand why in sailing they use their arms to spin a generator.

[K-Locke]

Oldest elementary school kids I've ever seen.

[Justin]

Pretty embarrassing. I produce 120w every single day of my life.

[adamkaracsony]

Nincs egy kerék fék az egyetemen ? Lerögzíteni az asztalt.