Video

@5:01 well you lost me at "square second"

I loved the part where you simulate Godzilla attack on the building when the lamp crashed on the model.. Definitely your pc readings will go bonkers.

Dumb pricing regime. Corrupt.

They are called Dolos.

Why the tax payer can't control the cost of cival engineers is more important !

cuz natural water stairs already existed

*casually reaches over 600 psi pressure vessel that appears to be schedule 80 PVC* "Yeah so this is how water is made"

I never have considered that the lines are elastic. Thats interesting by itself that they move that much

wait until everyone plugs in their electric car to recharge at 5 pm

I want to study the patterns of erosion and soil deposition, what's the best book? Thanks

I may have missed it but was there a rolling resistance graph for a typical car on pavement, I vaguely understand the math you did to get the trains but was curious if there was a study conducted on an automobile.

Why not just dig a trench where you want the river to go? Then, just make the walls of the trench stronger

We could power these islands easily with tidal power...

These islands will only be for billionaires in about 1 generation

Really interesting. Iv heard that using lime in concrete can help it repair small cracks by itself. Although I’m not sure how true that is.

15:09 Not quite "always reliable". We had one fail just recently in my city, and a truck driver was killed because the gates didn't drop & the lights didn't flash. That's why busses have to always stop at railway crossings.

The Navy could probably supply all the Island's power with the nuclear powered ships stationed on Oahu. Too bad nuclear power got a bad shake from liberals.

6:46 There is zero benefit to reducing CO2 emissions. All efforts to do that are a COMPLETE waste. CO2 vented to the atmosphere is harmless.

good

Can it be done with the Tesla Valve?

End of this year I’m gonna’ start working as a welder!

Get geothermal plant like Iceland. Free power

Tldr: they install railway tracks at high temperatures to prevent buckling, and put up with tension in the tracks

That's interesting, what about reducing the number of wheels instead of upping the weight? I've seen this utilized in racing, can't remember where. The basic idea is when the car is cornering, it's essentially on 3 wheels which causes better grip due to increased weight on the contact patches.

What’s interesting is that in the video the animation of the cars uses American-type cars but with Soviet automatic couplers

greetings from Melbourne AUS, great video, as a fellow engineer im appears to know few expert dam engineer in victoria and i have heard far too many people say dam-wall, its just a dam like you said 👍. On a smaller civil project we often used to installed precast concrete pit/wall to mitigate the groundwater issues, we also monitors the seepage points on dams and measure the ground movement with piezo, some older dam also have tradional pendulm to measure the movement. some area has historical ground water level and some large project would normally have sump pit and pump installed. thanks again for the video

_"Engineer dressed himself today."_ I felt that.

The working principle of true sine wave inverters was poorly explained. Also: There are not really "in between" steps between full sine wave inverters and "modified sine" ones.

room sized sediment table

will protective anode work in open air, if not underwater ?

these adverts are SO annoying!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

This guy understands math and physics very well.

Fascinating. I recently learned that clean creek water can be made drinkable with an RO system. The under sink variety is affordable! I intend to move to the 'edge of the grid' instead of 'off grid' and rather than digging a well, I'll be getting some of those 275g water jugs. A solar powered pump would hopefully be enough to fill it. I'm not worried about it being speedy. Then let an under-sink RO system handle making it potable. Technology is amazing.

This may actually be a good case for mechanical spinning power storage. Flywheel capacitors that can help regulate the power grid. They can be relatively cheap and can help buffer these issues out on a wind/solar farm. You could also connect them in series to stabilize things.

Over 8 min into a 14+ minute video and we still don't know the answer to the title of the video, "How long would society last during a total grid collapse"? I ended the video before making it to the end - I still don't know the answer.

One very important question is do you know JESUS CHRIST AS YOUR PERSONAL LORD AND SAVIOR?

People living less than half a mile have had material residuals in their houses that were not tested (there was one test for something that wasn't an issue), and houses and businesses are being abandoned. Wildlife has died at higher rates, the creek water has a rainbow, and people are showing higher incidences of illness. NS AFAIK has done nothing for the townspeople except oh, they set up a new city park!

Why don't they paint the rails silver or something similar to reflect some of the solar gain? Seems like a cheap way to get lower stress range, we did that with long piping runs.

was with a couple dozen cousins at our family cottages on lake erie ... fortunately, we had plenty of cold beer in coolers before the blackout occurred so we were good for the day ... great memory ...

Of all the risk and damage, the people who benefit from the dam only complained about a minor interruption in service. Those of us living in and around Oroville lived this.

999,666 views looks so funny.

It’s easier said than done. But we need engineers to utilize the powerful waves to power Hawaii

Yeah!! Guessed it! Whoo! (Hvac tech :) )

Fission reactor ?

We don't need them because they issue heat orders! 😂

Oh wow :( this is kinda sad, ... here in South Africa we've solved the same problem but used a very different system. no buckling, no metal fatigue inducing stresses, ... just a sliding joint every kilometer or so.

Very informative

Bad neighbors?

Nuclear power is the future

Here the solar charges a big DC battery and then an inverter supplies in the house and pushes to the grid. If the grid goes down, the pushing stops.