Bak 2 Skool 05: How's This Work?

(Happy to be an average dork)

Dan is right, we all do suck

“Cow tippin’, plane flippin’” has always been the state motto of Kansas.

Bakalar: "You're going to eat 40lbs of pepper jack?"

Dan: "Yeah"

Magnets, how do they work?

The flying egg is genius, Dan.

Brilliant work having the desk higher on Dan. Chef's kiss!!

The visuals in Bak 2 Skool are amazing. Thanks Jan (and whoever else helps on these)

Did Dan just invent a horizontal helicopter with no engine?

that egg plane looks like something a 4 year old would create. I haven't laughed so hard in a while!

The irony is that Dan's harebrained egg plane idea is not too far off from what giant wind turbines are doing today. Right now even bigger off-shore wind turbines are being developed with rotors upwards of 350+ feet wide.

This is a good video on siphons and how they're important in washing machines and toilets: https://www.youtube.com/watch?v=Cg8KQfaT9xY

Refrigerators are kinda tricky to wrap your mind around because they use tricks around phase changes, pressure, and temperature to do what they do. This video is a bit more advanced but it breaks it down pretty well.

I think Dan might be thrown off from the start because "cold" doesn't really exist. Heat is all relative to absolute zero, a state of no particle motion. So ignoring radiation for a minute, it's all about higher temperature particles transfer energy to lower temperature particles by bumping into them. Heat always goes somewhere (or comes from somewhere) unless it's insulated.

I have to see Dan try and figure out boats (and then submarines). I have to.

!!! Your Refrigirator is just an air conditioner !!! I really want to see Dan try to process that information. And then yes, he needs to understand boats and submarines.

Someone should show Dan the Melt Bar and Grilled challenge, it's only 5lbs of food, a lot of it cheese, and it destroys guts.

https://meltbarandgrilled.com/the-melt-experience/the-melt-challenge/

John Woo's Toilet

Well at least Dan has the perfect person to teach him about refrigerators. Fun show guys.

For refrigeration, it probably best to explain it in terms of how when you release air from a canned air duster, the surface of the container gets cold because the process of releasing a liquid (which under normal circumstances wouldn't be a liquid at the current ambient temperature) under pressure to a lower pressure environment creates a differential in temperature as the substance changes states. This draws in heat to equalize the difference in temperatures. This process can be done with quite a number of substances, but refrigerants are used because they operate within more optimal pressure and temperature states that the process can best utilize.

I don't think Dan truly appreciates how much cheese is 40 lbs of cheese. Or how much 40 lbs of ANY food really is, but especially cheese.

Quick question for the Americans: Are Electric Ovens and Stoves not a thing down there? I know you have the option of Gas but Living in Canada I've been in tons of apartments and houses and rarely is it ever gas.

Can someone please inform Dan about Celera 500l plane? Not quite the egg shaped but close enough if he put the props in the back.

https://www.flyingmag.com/story/aircraft/otto-aviation-celera-500l-31-flights/

Fun episode! I feel like many things require a basic understanding of the ideal gas law and the natural flow of pressure/concentration from high to low. Thanks and have a great weekend all!

@axl159: something like 2/3rds of cooktops nationally are electric, but in the northeast gas is probably as (if not more) common than electric (since gas service tends to be more available in the older, colder cities that are also near the coast.)

Can we get to see how mozzarella and brie are made next?

Yeah, electric stoves are getting more common. Gas companies have been pretty good at marketing gas as the "better" option though which is why most people who want a quality stove try to get something that's gas. I've never seen an electric oven that are as big as ones you find under stoves though, but they must exist if a place doesn't have gas.

The funny thing is that even gas stoves need to be plugged in. They have a starter that lights the gas. I'm amazed no one corrected Dan. I guess you could keep it unplugged and use a lighter to start the fire.

I respect Dan just taking the L on the refrigerator question. There are so many building block concepts that would be helpful along the way instead of just jumping right to the end and showing a refrigeration cycle. The video can explain the cycle, but Dan really has no reason to understand why each step works the way it works.

thank you JAN for the visualization of the DAN's plane

Jan just going above and beyond with this one! Thanks for the great entertainment!

Haha, isn't this what would happen when Dan fires up his egg-plane prototype? The egg would start to spin like a drill that gets stuck because it's incredibly light compared to the prop with it's drag. The legs would almost immediately fail and be torn off, while the prop falls forward sitting like a plate on the ground as the egg continues to spin at incredible speeds.

I think Dan invented a plane that transports you instantly to the grave.

I noticed that Jeff picked a video that skipped the explanation of what rennet is and where it comes from for Dan's sake.

@jerf 40 pounds of Pepper Jack == 6.749.196 calories

I would very much like the final quiz to be administered by Hank Green. I just think eventually an actual science communicator should actually educate the viewers here.

"It's cheese once they sprinkle the ferrets on it." ~ Dan Ryckert, 2021

I wish Dan was shown how processed cheese is made.

@outrager My family had a gas stove that had an auto-starter and also a manual starter button, like you would see on an outdoor gas grill.

@bisonhero: Yep, and I'm just thinking in general. Too steep and nitty-gritty for the show. I loved how it went in the video!

"what you just said probably offended a lot of people..."

I hope this series goes on forever. just great stuff.

Had to come here at 1am after watching to give a big shout out to Jan. My man, that edit at the end with Dan’s voiceover over the cheese video… *chef’s kiss*

I've only lived in the US for my 43 years and I've never lived in house that has a gas range (I usually use stove and range interchangeably but most houses will have a stovetop with an oven combined into a range but it was hit or miss in the apartments I lived in).

There is probably a case for it if you're a professional or very good chef. People like the idea of cooking over a flame.

As a homeowner, I prefer electric a lot. A smooth glass-top range is easy to clean. I don't need to have an externally vented range hood because I'm not burning my breathing oxygen to make dinner (code requirements I learned during a recent remodel). If you are remodeling, having an electrician move the 220V for the range is easier than running new gas pipes. Gas stoves/ovens are one more thing to leak deadly gas. When we bought our current house we had the external propane tank (for the furnace) replaced - we live too rural to get natural gas from a utility. We did a pressure check and the external line was leaky so we replaced it. But...the internal line was leaking too. The last occupants had been living over a slow propane leak, potentially for years. Yikes.

Like I said, I think people might prefer a gas range - you don't see electric stoves in restaurants and I presume it's for a reason. I don't go much fancier than mac and cheese. Or Kraft dinner ;)

Overall though if I were building new I'd stick with electric and be quite happy.

I've been familiar with Dan all the way back since he was at game informer... and every single thing I've ever heard this man say has offended me

The video on refrigeration should have gone over changing from a liquid to a gas more in-depth. That change uses a lot of energy. The energy needed is heat. You can design something so that a liquid turns to a gas in an enclosed area. It will get colder inside as more heat transfers to the liquid while turning to a gas. It also takes energy to turn it back into a liquid but that is done outside of the enclosure so the cycle can continue to lower the temp inside.

The egg plane is one of the funniest things I've ever seen on this website since I started coming here around 2013. I laughed uncontrollably

@smellylettuce: Dan "invented" something that was already made pre-Wright brothers when people were trying to learn to fly.

I wish they continued because by the time you account for fuel storage, baggage storage, flaps, wheel housing, ENGINE, that egg design slowly starts looking like a single seat plane people use today.

After escaping prison and beating up a wolf, Dan will have worked up a hunger that could only be satisfied with 40 pounds of cheese.

It's really amazing that "Dan's Plane" is just the tic-tac UFO with a massive propeller.

This is one of the few things I very specifically remember learning at school, because it was such a puzzle piece falling into place moment. It initially seems counterintuitive – specifically the chart showing how temperature plateaus during phase change even as more energy is added or released (depending on whether it's heating or cooling) – but it explains how so much stuff works.

In short, the key is this: melting and vaporising require energy (they're endothermic), which will be absorbed from the surroundings, while condensing and freezing are exothermic, which means they release energy into the surroundings. So if you can manipulate a fluid to vaporise in one place and condense in another, heat will be absorbed from the former and released to the latter. That's heat transfer, which is how most conventional cooling works - generally the only way we have of making one place colder is by making another place hotter (which can have environmental consequences!) - we move heat from one place to another. There are other methods of cooling such as firing lasers at molecules to slow down their vibration (I think), but that's really not practical outside of a lab and at an extremely small scale.

The YouTube channel Technology Connections has some really great videos about air conditioning and heat transfer, as well as a bunch of other fascinating stuff.

I feel someone needs to make sure that Dan doesn't think cows are the only animals that produce milk.

For your question on the refrigerant "sucking away the hot":

Think about it like this, heat will always move to a cooler medium unless hindered some way. The refrigerant isn't doing anything special to attract the heat in your fridge. Think about touching an ice cube. You don't have to do anything for the heat from your finger to transfer to the water, it just happens. The heat from your body transfers from your finger to the ice cube. This makes your finger cooler and the ice cube warmer, causing it to melt.

I think really think you should find a European video on how cheese is made for Dan. A little farm using traditional methods. America is not exactly known for their cheese makers.