The Seven Bridges of Königsberg - Numberphile

so interesting and i love you and math

ever since i learned about this i always wanted to go to kaliningrad with the express purpose of walking over every bridge once

Odd + odd = no
Odd + even = ok
Even + even = ok

I would like to read discrete mathematics and ducks.

why so pretty

I’d love to look through his collection of books there!

I'm glad Cliff did'nt fall into the river, at points i thought he was going in

Did anyone else think they found the solution before being told no one was able to do it?

Pathetic old man. Since when acting like a loser become instructive?
It's a simple question with a short answer, he doesn't have to make a fool of himself.

i thought of it from starting on one side, and because it had 3 bridges, that meant you had to end on that same side. so the answer was no as there were 2 banks with that.
edit: oh euler thought of it similarly

I love this guy. His passion is so over the top

The problem is that these bridges have two sides and 4 edges. If they were Mobius bridges, you could walk across one bridge forever, but after an infinite number of years, you'd reach the island of Klein.

He doesn't give a damn how crazy he appears and I love him for that. We need more like Cliff!

Wow!!

I just watch Cliff coz I love his enthusiasm and genial wackyness. He teaches about life.

Having a hard day. Cliff cheers me up. Thanks Cliff.

The allies were so upset with this riddle that they started WWII and bombed two bridges so those morons could figure it out...

you could just using the 3rd dimentions and then it would make it possible

Checked and it's only possible with an even number of bridges

>> I just realised you’re thre voice of doctor quantum! << o.o Mind Blown

He seemed very serious about not being in the water.

He lives in his work

Sorry to say that the solution given with 5 bridges is FALSE !! This is were the abstract mathematics differ from the real life... It is false unless there is a metro in one the two island or a free helicopter service !! Make a guess... answer below
I
I
I
I
I
I
I
I
I
The solution works if you start your walk from one island - Nice... But how do you go into this island without crossing a bridge ? 😉

I wonder if any bridge topology jokes of this exist

I truly love every bit of this video, and come back to re-visit it occasionally. However, I still don't know how graph theory and topology is related.

Conversation in Konigsberg after the war : So sad the war destroyed our city. 😭
But hey, atleast we solved the bridge problem

😂😂

How can you list books about bridges and not mention Iain Banks' "The Bridge" :D

Is this the Euler who created eulers number 2.something

"Oops! Stay out of the water!" I love this man.

the way he made my brain understand

I enjoyed that more than I expected.

It’s amazing how much all of us live in Euler’s shadow.

The explanation was truly brilliant as is the insight gained from the 7 bridge problem. It's amazing. It's like I could peer into the mind of Issac Newton and feel the inspiration when he observed an apple falling.

I am in love with these bridges ☺️

which war were the bridges destroyed in

Why do I feel like I am getting back my love and enthusiasm for math (that I was gradually losing during this year) just by watching him xD
It makes me want to keep watching him more and more until I get back my emotions towards math T^T
Having supportive teachers is really great damn, I love him.

every time I watch this guy I get remember why I fell in love with math

I came up with the same solution before hearing Euler’s explanation. The key was to realize that the end of a line must start or end in an odd numbered location…which means if there are more than 2 odd numbered locations it cannot be solved. This is similar to another problem where there is a rectangle with three squares on the bottom and two on top and the trick is to only cross each line once. The solution is to start and end in spaces with odd number of border lines.

I wish I could just hang out with this guy

Such a nice funny person and he has a lot of books.
I hope that the one who filmed it didn't fall from wherever he was standing filming.

Discrete math and application... Is it written by C. L. Liu? Please let me know.

I admire an inspired soul for a passion for sacred geometry and divine numbers.

I can spend years with him without having second thought

germany should retake kaliningrad.