this is what's great about KZfaq, by accident you learn about something you've been observing but not really understand for years 👍

First time viewer. Genius is the ability to teach a complicated subject clearly, simply and comprehend able to an average person. Thank you for your time and knowledge.

That was brilliant. I really liked how you developed this, logically, from a single tension and a single compression structure to a structure with multiple members. Thank you.

What I learnt after a whole career in structural engineering is that most of the time no one really cares about getting even an efficient structure (unless it is the primary structure of something huge), let alone a theoretical optimum. The exception is design-and-build contractors where their profit margin depends on minimising materials, but of course they won't do that at the expense of complication, which costs "more than materials".

Thank you so much for taking the time to make this video. I had a basic understanding of the loads involved in a truss, but some times had a hard time determining how the load was transferred through the structure. And it turns out because I was looking at it backwards. I would look at a bridge and try to figure out the load distribution by the weight of a truck sitting on it, not as the support structure resisting that load. I’m not sure if I explained that well, but your explanations helped a lot. What finally made it click, where I had that lightbulb eureka moment, was your graphics of the hands supporting the structure. I am very grateful for that, and again I appreciate you making these videos for everybody

One thing that pop in my head is when you build a truss on the ground and you use a crane to put it in place you have to consider that forces (tension and compression) will be the opposite way temporarily while moving it! Good video sir!

Vid came up with the algorithm while I've been studying for my Architect exams and brushing up on my structures. Just excellent explanations! VERY helpful.

As part of my job, I have to record historic bridges, both automotive and railroad. I love watching your video showing how variations on the Warren and Pratt truss bridges work.

I'm less than two minutes in, but can already tell that I've just struck KZfaq gold! New sub!

Paul this is such a concise and beautiful presentation! Your style works so well, like a great piece of music. Well done!

You explain in such a way that it is easy to understand, bravo!

wow, you demonstrate the truss concept in step by step, this is very easy to understand and truly a clever method. Thanks!

It's so intuitive and fun when explained like this !

Thank you sir Very interesting especially the arches and cables you find in the efficient truss

The tutorial showed up when I needed it the most. God Bless you Sir.

Me watching these videos so I can built better bridges in Poly Bridge 3.

I have designed trusses at a wood truss manufacturing plant, but never understood this. The software just did if for me. Thank You for sharing.

Fantastic work! Thanks Paul!

Structural Engineer: uses hi NOSE to point out something Me: EVEN MORE respect

Great video with clear explanations!

well explained, I think the magic in understanding it all ,is breaking it down into small thinking process blocks

Liked and subscribed. I am an engineer and having come across your channel by chance I found it to be be beautiful in the simplicity with which you explain things that in our days professors bored us to death with explanations of vectors and forces that in the end left us as ignorant as we were before. Thank you Paul and please continue the illuminating work. Hopefully some young blood will stick with your presentations and learn much from them, especially in the area of being opened to the enthusiasm of learning beautiful concepts.

I like how you teach visually, as it can be difficult going straight to maths without an intuitive understanding.

Amazing explanation of TENSION & COMPRESSION using a PAPER!!!

Just discovered this while taking a structures class, this is very helpful and easy to understand. Thankyou!

I’m so friggin pumped on this channel!!!❤❤❤

Wow! The way I look at bridges is changed forever. I had to subscribe after watching this video. Thank you 👍

Thank you for that. You bridged my understanding

Thank you sir. Anyone with a PHD can explain physics to other well educated people. It takes a master to explain it well to us simpletons.

좋은 영상 감사합니다 탁월한 전달력 최고네요

best video so far for me, this is perfect for civil engineering students. more power to you sir thank you

Love this video.... Well illustrated for the beginner...

Excellent presentation. As a teacher I compliment you on your presentation. A good teacher takes a complicated subject and explains it in an clear and easy manner that could be understood! Kudos!

This is the most brilliant explanation of trusses I have ever seen.

I love just going out in the world and trying to understand things work and being able to just ask that question and get a video on it.

Nicely explained! Brings back my Statics lectures from a few decades ago. I might have to dig my textbook...

Nicely done ! Cheers !

I like the way you explain. I found your approach very logical and easy to follow.

Fantastic video thank you for explaining all the physics behind each of the different kinds of geometry that was very helpful. I’m trying to learn how to build trusses in the house and this definitely answered my questions.

That is brilliant ,it instigates useful ideas that can be used in truss and tie model in the design of deep beams of reinforced concrete designs

Nice use of West Point Bridge Designer! I used that with my middle school Technology Education students for many years.

Sophisticated and simple. That's brillian.

That part about the optimization of trusses spot on

So simple? No, it is made simple. A simple start, add elements one by one, understand each's role, comprehend the larger complecated picture. Very fine tutorial, that neither goes above head, nor allows to forget easily! Kudos.

Wonderful explanation made simple and elegant to understand 😊. Thank you paul

I liked his diagrams. They showed the magnitude and direction of forces in a way I could understand.

Poly Bridge leaderboards, here I come!

Wonderful explanation made simple and elegant to understand 😊. Tha k you paul

I am a land surveyor currently doing my stage. I very much hope to work on a large world-class bridge at some point in my career. I have long loved bridges and considered them the greatest expression of Human engineering - because they link People together, they span gaps, they encourage exchange and cultural fluidity. The Ancient Roman Princeps was also the "Pontifex Maximus", the "Great Bridge-Builder". Spanning gaps is a Human fixation, it seems. There's so much glory in a great elegant bridge.

You are a great teacher! Nice job with this.

These videos are great for helping me throughout my apprenticeship!

Brilliant way to explain the truss geometry... Thanks

This was a great explanation. Thanks!

That last structure looked like a spider's web 😊

Thanks for a truly excellent presenttion of the concept of tension/compression in trusses. If only the rest of the world could employ logic as well as you engineers....

Great informative video.

excellent thanks for your work

fantastic video with concept, very easily explained

Beautifully explained and great outro music.

UÁU !. Inglish Is not my original idiom, but, any way, I can say your class was realy wonderfool!!! ( from Argentina).

Awesome explanation !!!

Very basic knowledge that many people don’t know. Thanks

Genius teaching style. Take love from Bangladesh ❤️❤️

this is actually pretty nice

Brilliant .. God bless You !

Great lesson thanks for this lecture

Great video, thank you!

Thank you, simple and concise!

God bless a true educator! Paul just found your lessons when you trusses lesson came along my feed. I'm 47 big old goof who only took physics for dummies in college and nothing ever in high school. This is so very interesting and well presented. So very well done Paul, thank you. I can't wait to get to your other content. And watch this one on trusses again.

Amazing teacher!

A wonderful video, a beautiful explanation. thank you very, very much. I am not an engineer but I enjoyed this very much. I always wondered.

Great explanation! Thank you!!!

Wow. Thank you so much. Inspiring.

You ar an amazing teacher! Thanks for sharing your knowledge. I subscribed.

10:40 ❤ “when you have a limited situation or something you can control, you are able to optimize more”

Fantastic!

Good illistration technique

Thanks a lot for your awesome videos. Your style and the hints highlighted are truly enjoyable and fun to watch and learn :-) Sincerely wishing you and your KZfaq channel a rapid steady growth and popularity. Kind regards :-)

Great description

you have a new subscriber !!!! great video !!!!

շնորհակալություն Paul!

Soo good!!!!

3:35 “you have to truss me on this”, well played

you had me at "I'm a structural engineer"

this is great.

Thanks from Spain

3:12 the best explanation , ever, on youtube !

As a structural bridge engineer, I often watch your clips and thoroughly enjoy them. You demonstrate great creativity and innovation in your work. Particularly impressive was the clip featuring an arch structure built on a small scale model, where you deformed its shape by applying load with your finger. Additionally, the clip discussing trusses was captivating, especially when you introduced the optimized truss, with one part functioning as an arch and carrying compression loads, while the other part acted as a cable and carried tension loads. Overall, your work is truly amazing. Thank you for creating such incredibly beautiful clips.

Hey: I have been watching your video series on structures, and I would like to commend you on both the quality and content of these videos...really well done. In terms of trusses, which truss design do you favor for over all strength for uniform compression loads? Again, thank you for taking the time and effort to make the structure videos.

love it!!! may i ask how do you simulate bridge tension and compression?

I know this is a late comment, but this explained it well, thanks Paul.

Great explanation Sir

Thank you

you are awesome i hope i learn more from you thanks a lot

This is a great video, do you think you could do a video on construction cranes and all the tension and compression they face? Im sure there is such a fine balance of all the techniques you have shown us thus far. I've look for years for someone to give a good explanation on the engineering behind cranes and no one has been able to do a good job. Maybe you can be the first :)

Last Truss can be further modified for looks i.e. unequal members forming trapezoids 🔰💎 to equal members forming squares 🧇🔶

Making only one set of lines bend on the paper was the best magic trick I've ever seen, you should headline at Vegas! Just kidding, but it wasfantastic in its simplicity to show a complex idea as was the rest!!! Well done my firend.

Brilliant

Very good 👍

I once made a small truss bridge for my daughter's cat. It was made of 1/4" x 3/4" pieces of white pine . Finished size was about 8 feet long and 6" x 6" square.. It was held together with hot melt glue. Imagine my surprise when we tested it's actual strength. It would hold two 90lb. bags of concrete!