What the HECK is Energy?

Just about every scientific discipline talks about energy. There are many different types: potential, kinetic, thermal, chemical, and even nuclear. It's behavior has consequences that affect the very nature of matter and space-time itself, so what is it exactly?
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VIDEO ANNOTATIONS/CARDS

What the HECK is Mass?

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Is Math the Language of the Universe?

The Ultimate Guide to Relativity:
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PBS Space Time on Energy:
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LINKS TO COMMENTS

What is Energy:

Featured Comment:
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IMAGE CREDITS

Nuclear Test:

[OslerWannabe]

I have a rusty 50 year old degree in chemistry which I used to get into medical school, but I've finally retired and am trying to dust off and modernize my mental library of basic science. I used to think of this guy's videos as a sort of circus side show — freakish enough to attract attention but a bit light on substance. I clicked on this video because my brain was still aching from watching multiple SpaceTime vids, and I needed a cool-down of some sort. Instead I got an epiphany — NIck's a genius wrapped in several kilos of faux nutcase. This is easily the clearest explanation of the relation between force, work and energy I've ever seen. The little interludes of "insanity" which I used to see as irritating dork-outs (e.g. singing along to work themed songs) actually seem to serve a purpose — they're little cognitive time-outs to allow digestion of the preceding dose of facts.

So, Nick, I badly misunderestimated you; this is good stuff. I'm going to dive into your backlog of videos, which I suspect contains a number of deceptively coherent gems of insight like this.

[kostantinos]

For example, Nick converts the energy he has into awesome videos. That's not work, that's great work.

[balu.]

Not all superheroes wear a cape. Some wear lab-coats!

[kayrosis]

How did you describe this better than PBS Space Time? They just confused me and made me second guess what i thought i knew... and you just restored that confidence that I was right to begin with. Thanks!

[sorin.n]

Thank God for the Clone for forcing you to give us more info. :))

[mongke]

A week of classes in eight minutes
....
You are great man..

[MrJohnnySepeda]

This channel has given me the best understanding of physics!! Thank you!

[argiepoul]

I didn't even know physics had an explanation for energy(like this one)!!! Perfect work, now i understand the universe much better!!! Thanks!!

[jahnvisingh]

This video has seemingly cleared all my doubts regarding the concept of energy. All the content in textbooks never really defined work or energy properly. But this video has probably cleared all those confusions regarding the topic. Much appreciation to all the force x displacement you have put into this video. Loads of Gratitude.

[cbarnett]

“Energy is not a tangible thing, it’s just a number we measure/calculate that describes a property of tangible things” - BOOM!

[nineball]

Alas, in physics you have to do the math too but showing us the concepts is what Nick does well. The media uses Force, Energy, Power, Work and more as colloquial terms but each has a specific and different meaning in physics.

[FGj-xjrd]

What is energy? Something that the Science Asylum has a lot of.

[INTJIsland]

It has been a long time since I heard "Working in a coal mine" sung. It was on the charts in 1966 when I was a freshman in high school. When I took physics in high school I had to use a slide rule because there were no pocket calculators yet. It is lot easier these days with all the tech help. If you were going to make this video back then you would be using film to do it. But then you wouldn't have an Internet to upload it to either. Things have changed a lot since that song was on the air. Thanks for the memory trigger. Us old folks do a lot of that living in the past stuff. :-)

Seriously, you put a lot of energy into your videos and you do a good job. Keep up the good work! (W = F x D).

[Lucky]

So, is "energy" just a human attempt to categorize something while "the universe" laughs at us?

[betterlifeexe]

I cant stop watching, this YouTube channel succeeds at having an addicting flow while maintaining a high degree of technical, foundational information. I look forward to my brain post binge.

[deepvybes]

Not only do I understand Energy, I also understand Work! Twofer!!

[elperroreggae]

A working class hero is something to be!

[KeithCooper-Albuquerque]

This is a great video! Your approach to this topic wraps up so much! Thanks so much for posting!

[manansanjaysahni]

I had some questions before but your videos are really helping.

Keep making these videos as you are helping a lot of students who are not having teachers as good as you.👍👍👍👍

[MelloCello]

1:40 one of the most revelatory things I have ever seen in a video,

this channel never ceases to amaze me!