London Millenium Bridge Opening

[bombersrulz]

What took more time, the building of the Millennium bridge or the one minute CGI design of the Death eaters breaking it?

[sparlexna]

The "giggidy giggidy" bridge would be a nice name :)

[Seanmcdhuibhne]

Why not call it The Diddy Bridge or The Drunken Bridge

[MatSallehBoleh]

I love Pat Dallard, master of understatement at 00:44. "It was, erm, very disappointing". Don't you mean "we shat bricks"?

[45pudding]

I AM a mechanical engineering student and I'm writing a report on it as a project.

[harkybInside]

@45pudding haha so am I and my lecturer told us to watch this video!

[merederem]

2:47 that's me!

[bullman86]

@merederem not that my mum

[simpsom20]

it still wobles now :P

[TopGearrules]

Why didnt they just keep it like that!

[johneastmond]

Some folks (I'm sure) think that's a dumb question. It's not! The structure has enough mass that the stationary momentum would keep things stable w/ the number of people who would be on the bridge at once on a typical day. The fix is quite elegant! Can you see the change?

[shenmuere]

@TopGearrules, if they keep it like that, then the bridges natural frequency will resonate so much, that it wil start to crack from all the stress.

[major600]

Fascinating...and kind of funny.

[danhall789]

Thank you so much, I used this video for my coursework on Synchronous Lateral Excitation and it's been VERY useful!!

[johneastmond]

How do you NOT know about pedestrian lateral loads?! Any video of people walking shows side-to-side motion in they're upper bodies. (That sideways motion requires lateral loading) People on ice demonstrate need for lateral containment. (Feet kick out to side) How many ways can you think of someone accidentally doing the splits? What about the ways you have slid?

[MistressBellatrix]

My Lord strikes again

[yeahnah89]

pwells1 your a twit

[Pwells1]

Curse you Bellatrix!

[chandru1103]

@Pwells1 It was Greyback, Bellatrix wasn’t there when they kidnapped Ollivander. I know, I am a downer.

[carmusen]

It was the Death Eaters!

[xman4un]

Does one want a bridge to react that way???

[qinyuyunlong]

Joke!

[rexster63]

Unfortunately they still dont get it, the on or off wobble is a phase transition, the people walking in synch did it because the wobble made them synch. Read Strogatz book Synch.

[youtubasoarus]

Looks like a problem that effects suspension bridges.

[dnahk2483]

I'd say it's rather important for Mechanical Engineering students to know about this =D

[RCvehicles]

@dnahk2483 more Civil Engineering than Mechanical but ok :)