So, this is nice, but how would you build this across an actual river? How would you get the beams into place if you can't hover over it like a miniature god?
A camshaft, a shaft to which cams are attached, was described in 1206 by al-Jazari, who employed them in his automata,[23] water clocks (such as the candle clock)[24] and water-raising machines.[23]
Triangulation is an incredibly powerful tool for distributing forces evenly among contact points, almost every large scale bridge and older box and truss bridges use them all over the place. See: Arthur Ravenel Bridge, Don Holt Bridge and the Grace and Memorial bridges that the Ravenel replaced in Charleston, SC
We use the same design for everything from roller coaster track pylons, residential roof structures and lots more. Granted, this video only shows a very basic implementation.
The fun part is you can keep that pattern going to do even longer bridges. Downside is the arch gets bigger too, so it's only SO practical. But still neat!
Those bridges are impressive, but they're not the same kind of bridge. The article you linked says the Chinese bridges use carpentry joints to hold the beams together. Da Vinci's little bridge design only uses the friction of the different pieces, with no joints.
Additionally, the Chinese bridges are anchored. The Da Vinci bridge here is not anchored at all and only held in place by gravity.
Do you have a source for that? The one already provided is a different kind of bridge, and everything I can find on self-supporting bridges says Da Vinci
self supporting = "a structure designed to support its own weight and any applied load without the need for external fasteners like nails, screws, or ropes"
Wrinkle666
Chinese been making them since 7th century, Anji Bridge .
Ivain
So, this is nice, but how would you build this across an actual river? How would you get the beams into place if you can't hover over it like a miniature god?
Sticklebrickk
I had this idea when I was a teenager
WishboneThighs
https://media1.giphy.com/media/v1.Y2lkPWE1NzM3M2U1cXkxOG41bGFheGhyZjBzdXg3MmszNzl6YzAyaTdnYWJkcnBjYzVtdCZlcD12MV9naWZzX3NlYXJjaCZjdD1n/1oD5KMjB04mD8U9HZi/200w.webp
Thisisallyourfault
I really need to do this with toothpicks so I can cement the concept into my sad little brain
Faasel524
My observations are that the dude got a full new set of clothes to make that clip.
djangojazz
Science... Yeah
JPRiddles
Hang on, how are the 6th and 7th pieces staying in place before he puts the last two pieces on?
cearrach
friction
Californiajackson
The jokes aside, that's really cool. I'm in awe of mechanical engineering. Whoever invented the cam shaft is my genius hero.
ximzadix
https://en.wikipedia.org/wiki/Ismail_al-Jazari#Camshaft
A camshaft, a shaft to which cams are attached, was described in 1206 by al-Jazari, who employed them in his automata,[23] water clocks (such as the candle clock)[24] and water-raising machines.[23]
VowelShiftBetch
This isn't self-supporting; The man is supporting it during multiple parts of this video
BigLoudJerk
WITCHCRAFT!!!!
Xenarion
I love physics.
taez555
Still the dumbest person from planet Vinci.
kaneinencanto
Friggin' Duh Vinci...
MungChomper69420
brownribbon
Eew! I’ll have a crab juice.
mikeatike
What about Veni Vidi Vinci?
nothebees
Veni Verdi Vomui - I came, I became green, I barfed
AnomalousViews
BrickForAnOre
Stupid Biff!
PJVeddersGirl
I just think it's nuts that video cameras were around then,
knoxxy9
amazing for 600
year old footage
RobJenkins
Between two banks, Shirley
thegarts
It’d be easier to jump.
erinaceus
now ride a bicycle across it.
ChallengerDeep
Reminds me of the "balancing forks and a coin on the edge of a cup trick." Da Vinci's ability to see these sorts of things is astounding.
Boxzsak
Neat. It seems like the stresses at the joints would make it an untenable design for large scale though.
MostAwesomeDan
Triangulation is an incredibly powerful tool for distributing forces evenly among contact points, almost every large scale bridge and older box and truss bridges use them all over the place. See: Arthur Ravenel Bridge, Don Holt Bridge and the Grace and Memorial bridges that the Ravenel replaced in Charleston, SC
We use the same design for everything from roller coaster track pylons, residential roof structures and lots more. Granted, this video only shows a very basic implementation.
JimiFloyd2
Think again
Feralkyn
yeah but that's got at least two more sticks
duffman3335
You jumped to the other side. You don't need the damn bridge!
justGeorge
This clip needs a sound track.
WaxDragon
The fun part is you can keep that pattern going to do even longer bridges. Downside is the arch gets bigger too, so it's only SO practical. But still neat!
WellEverybodysHeardAboutTheBird
okay, but the gap is much smaller just behind you there
gIoblobbIobgob
Oh that’s fine, just use smaller sticks.
Skuggen
MantisTobagganMD
If he don't get no tolls then he don't eat no rolls.
SpikesGuns
That's true. And a toll is a toll. And a roll is a roll.
LordOfTheFleas
gtollie
Plus .. looks like he can easily step over it .. worst case maybe a small hop is needed. There is no need for a bridge
mrbadxampl
Look, Robin, this ain't exactly the Mississippi! I'm on the east bank, I'm on the west bank!
MantisTobagganMD
That's not the point....it's the principle of the thing!
spontaneous9
mondeca
Don't tell Tony that
dontfloatmygoat
Fuck you, Tony
IDontCareAtAllButIShould
The Chinees have been building them for a thousand years. https://www.dailymail.co.uk/news/article-2253793/The-1-000-year-old-wooden-bridges-modern-China-moving-Stunning-timber-structures-withstood-test-time.html
Quesadildos
Also keystone arches are self supporting and the existed loooooong before DaVinci
QuartzPoker
Those bridges are impressive, but they're not the same kind of bridge. The article you linked says the Chinese bridges use carpentry joints to hold the beams together. Da Vinci's little bridge design only uses the friction of the different pieces, with no joints.
Additionally, the Chinese bridges are anchored. The Da Vinci bridge here is not anchored at all and only held in place by gravity.
4etherling
Regardless, he did not invent it. Merely documented it in the eyes of the Europeans.
QuartzPoker
Do you have a source for that? The one already provided is a different kind of bridge, and everything I can find on self-supporting bridges says Da Vinci
Leaps
If you think the Daily Mail is lying, you'll usually be right.
HawkmanXLII
That doesn't count because they're not white.
VinnieJonesDiary
Ew gross, the Daily Heil, don't post that!
resolved
Is Anyone else thinking of dave Chappelle from men in tights...?
kickahippie
A rolls a roll, a tolls a toll. If we don't get no tolls, we don't eat no rolls
charondaboatman
I wasn’t. But now, goddamnit. Shit.
youreapieceofshitmorty
Did you say Abe Lincoln?
LilyBellGiantess
YES!
eem5
wait, that was him? I never connected the dots. Watched men in tights before I paid much attention to actor names.
MrNardtastic
This aint exactly the mississippi. Look, Im on the east bank...Im on the west bank...
SecretSquirrel27
Ahchoo?
resolved
Here...!
Wobbleding
BLESS YOU!
IndependenceHallPhiladelphiaPA
every bridge is self supporting
ILoveThiPlatform
...until they arent
JeffTeck
not suspended bridges
epithymetic
They are self-suspending, then
PastureofMuppets
The parts that hold it up is additional bridge
JeffTeck
a vertical tower holding cables, you call that a bridge?
IndependenceHallPhiladelphiaPA
what are they suspended from, jeff?
JeffTeck
From cables attached to towers. What's your point?
IndependenceHallPhiladelphiaPA
https://imgur.com/wuylueh hmmmm
IndependenceHallPhiladelphiaPA
those cables and towers arent parts of the bridge?
JeffTeck
self supporting = "a structure designed to support its own weight and any applied load without the need for external fasteners like nails, screws, or ropes"