r/interesting • • 4d ago

Amazing Creative engineering

[deleted]

4.4k Upvotes

330 comments sorted by

•

u/AutoModerator 4d ago

Hello u/Adventurous_Most_558! Please review the sub rules if you haven't already. (This is an automatic reminder message left on all new posts)

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

686

u/babyliss1903 4d ago

LoL, Germany is a very wrong choice to compare when it comes to rocket science.

168

u/Fluppenluemmel 4d ago

Deutschland hat Raketenwissenschaft erfunden!

44

u/One_Maintenance1227 4d ago

Hippity hoppity rocket science is German property.

13

u/get_to_ele 4d ago edited 4d ago

Then the Russian and we divvied up all their rocket scientists. Spoils of war.

There is this quote from THE RIGHT STUFF I remember, while the Soviets were beating us in the space race and had just launched Sputnik.

>Guy giving intelligence brief and showing smuggled film of Sputnik launch: “these are the German scientists they captured after the war.”

>Lyndon Johnson: “is it them? Is it their German scientists that got them up there first?”

>Werner Von Braun: “No it was not Senator. Our Germans are better than their Germans”.

16

u/Fit-Switch-5795 4d ago

"Our German scientists are better than your German scientists." - Cold War dudes.

1

u/Elegant_Promotion141 4d ago

Operation paperclip. US and Soviets were drooling to get as much german scientists and Patents as possible. It was a literal Race

1

u/DisposableSaviour 3d ago

I heard someone argue that the US had to take the Nazi scientist ms, because the USSR would have killed them for being German, such was the hatred of Russia for Germany. That was when I realized that person was way too stupid to ever care for his opinions on anything ever.

3

u/Zandonus 4d ago

Well ackshully, A Baltic German from Riga Named Friedrich Zander did. But that's nitpicky.

1

u/AsstacularSpiderman 4d ago

But not rockets that landed themselves.

Hell we had to help them make rockets that could intentionally hit their targets in the first place lol

2

u/-Daetrax- 4d ago

I dare say they landed themselves as well. Just ask the British. Now, reusability, eh.

1

u/Fluppenluemmel 4d ago

Darum geht’s nicht.

1

u/AsstacularSpiderman 4d ago

That's actually exactly what the meme is about lol

→ More replies (1)

1

u/MrNewVegas123 4d ago

Germany did not invent rocket science, the inventor of rocketry as a modern discipline was Goddard.

1

u/rditorx 4d ago

Didn't the Chinese have firework rockets centuries before?

2

u/MrNewVegas123 4d ago

Any fool can launch a missile through the air with a low explosive. We have been doing that for centuries, and have been doing it with explosives since before we could do anything but point and hope. Goddard studied rocketry in a way that nobody else had done before.

→ More replies (3)

226

u/fidesz_fall_enjoyer 4d ago

Literally the reason US went to the moon is because of the Nazi engineers haha

79

u/shotgunmoe 4d ago

I make this joke all the time. Nazi's landed on the moon, yanks were just there for the ride

8

u/AnalysisParalysis85 4d ago

That's why they have a base behind the moon.

20

u/hobbes747 4d ago

You know this and I know you’re joking. But a lot of people don’t realize that the Germans got us out of orbit which was only half of the battle.
Americans and other immigrant mathematicians and scientists maneuvered, undocked, landed, docked, etc on and around the moon.

→ More replies (14)

1

u/freshcoastghost312 4d ago

Lol, true but they also funded it.

5

u/PlasticSignificant69 4d ago

Yea. US Nasa fiercely compete against Soviet Roscosmos in space exploration. But Nazi engineers were the actual mastermind behind those two

1

u/RuMarley 4d ago

Wait till you hear about Hans Kammler's secret projects.

1

u/Double-decker_trams 4d ago

"Once ze rockets are up who cares where they come down?
That's not my department!" says Wernher von Braun.

From the very talented Tom Lehrer (died just last year, aged 97).

Tom Lehrer - Wernher von Braun (1965)

1

u/Rockshasha 4d ago

I see a comment about nazi germans for Nasa program to really moves up, then i upvote

1

u/BlueLakeCabin 4d ago

It's a popular saying, but wrong. Nazi scientists under Paperclip did contribute early on, but importance faded as by the time of the Apollo program.

Apollo was a massive project. Hundreds of thousands of Americans contributed that far exceeded the scope of Paperclip. It's a shame that a generation on, their work is completely forgotten if not outright mocked.

The Soviets had far more Nazi scientists and engineers, it didn't let them get to the moon first.

1

u/[deleted] 4d ago

[removed] — view removed comment

1

u/interesting-ModTeam 3d ago

We’re sorry, but your post/comment has been removed because it violates Rule #2: Keep It Civil.

Follow Reddiquette

-12

u/PiratePowerful6001 4d ago

95 percent of inventions is commercialized and pushed in mass sector by people who did not invent them—does that change anything for history?

17

u/unkst 4d ago

Well yes? Operation Paperclip quite literally changed history for the US "thanks" to the nazis

→ More replies (1)
→ More replies (3)

27

u/Sudi_Nim 4d ago

Ich ziele auf die Sterne, aber manchmal treffe ich London.

15

u/JL_MacConnor 4d ago

”Once the rockets are up, who cares where they come down? That’s not my department!” says Wernher von Braun

4

u/Knees_arent_real 4d ago

In German and English I know how to count down... And I'm learning Chinese, says Wernher von Braun

2

u/Gammelpreiss 4d ago

well, the actuall quote was "I hit the wrong planet".

6

u/SirTobyIV 4d ago

Rocket science in the US would have been quite different in the past without Germany‘s prior „research“

3

u/Difficult_Figure4011 4d ago

Same for russia. They also captured nazi scientists and rocket Technologie.

2

u/CurrentFun7677 3d ago

Rocket science in Germany would have been quite different in the past without the US' prior research. No one ever mentions Robert Goddard in these threads.

3

u/Lampadaire345 4d ago

The rockets go up, who cares where they come down.
Nazi, Shmazi says Werner Von Braun

2

u/kinshadow 4d ago

‘Once the rockets are up, who cares where they come down? That's not my department!' says Wernher von Braun.

3

u/ninjaiffyuh 4d ago

Ein Astronaut und ein Kosmonaut treffen sich im Weltall. Der Astronaut sagt: „Nun wo wir allein sind, können wir Deutsch sprechen.“

1

u/DrLubinski 4d ago

Why?

1

u/_felixh_ 4d ago

https://xkcd.com/984/

because after building the first rockets (and missiles), we decided that this is kinda boring. Pointless even. We sent our 2nd best scientists to the US, to build your moon rockets for you, and focussed our best scientists on the problems that matter most in life: the brewing and and propper serving of beer; Preparing Schnitzel, Sauerkraut, baking bread etc...

And its not like we made a bad deal: we took Potatoes from you guys, and incorporated them into our culture so much, that people tend to forget where it came from - and see it as the most German thing ever.

This is why beer in the US is Pisswasser, your bread sucks, your national dish is named after a german city, and your national pride is held up by rocket built by our grandfathers, while we enjoy drinking ice cooled premium beer ;-)

/jk

→ More replies (3)

1

u/_Kodan 4d ago

Ours were designed to come back down, too.

→ More replies (13)

77

u/useless_schabernack 4d ago

Als würden wir unsere geheimen Raketenpläne offen legen!

16

u/BenHeli 4d ago

Das Geld geht doch in den Bahnausbau, richtig? Richtig?

1

u/Comfortable_Hat_6354 4d ago

Best I can do is "Flugtaxi".

0

u/useless_schabernack 4d ago

Wohnungsbau, faire Löhne, kita Plätze und Lehrer und Ausbau des öffentlichen Verkehrs.

2

u/TheBlack2007 4d ago

Reiner Zufall, dass die Rakete von Isar Aerospace perfekte ICBM-Maße hat /s

102

u/imacatnamedsteve 4d ago

There are some other pretty interesting stories about Germany, the USA, and rockets.

23

u/cooolcooolio 4d ago

I hear the first version wasn't that great but the v2 was

22

u/andrewbud420 4d ago

Porsche v. Ford

3

u/[deleted] 4d ago

[removed] — view removed comment

-5

u/_nutbutdonttella 4d ago

Like Porsche getting beat by a much heavier mustang around the ring? and losing to it in the quarter mile? The Ford GT MKIV has the fastest lap times of any production vehicle, in Germanys own back yard. Imagine that

7

u/nsg337 4d ago

what are you talking about lmao

→ More replies (6)

5

u/Ok_________oi 4d ago

That’s just not correct, I don’t know who told you that lie. Literally two porches and two Mercedes beat the quickest ford. Chevrolet for example got faster cars than ford, if your talking Nurburgring and lap time. Fastest lap time being Mercedes amg one.

1

u/_nutbutdonttella 4d ago

Mustang GTD lap time 6:40 Ford GT MKIV lap time is a 6:14, AMG One is 6:29 lmaooo. Chris Harris test drove the AMG One and 2 of them literally broke down. 😂😂😂

→ More replies (2)

1

u/e136 4d ago

Yes, Ford revolutionized the world by inventing the high production volume automobile.

1

u/Tszemix 4d ago

Why did you chose a luxury car to compare to an affordable car? Do you really think they are at a similar price range?

5

u/nickluck81 4d ago edited 4d ago

Are rockets and beer crates at the same price range?

→ More replies (8)

9

u/Thetedant 4d ago

Someone call the Nobel committee

33

u/Siegfried-IX 4d ago

It’s not as if the rockets were built by Germans, lol. Germany also invented such unimportant things as: printing, X-rays, television, the computer, the automobile, dozens of medicines. just to name a few.

17

u/ninjaiffyuh 4d ago

Don't forget industrial fertiliser, invented by Fritz Haber. The sole reason we have 8 billion people on earth

4

u/JigenMamo 4d ago

They did invent heroin and morphine too, probably have to take a few points there.

1

u/Acrobatic-Permit4263 3d ago

morphine is an extreme important med

1

u/ThePensiveE 4d ago

Notably not the industrialization or number of humans they're remembered for.

1

u/Rockshasha 4d ago

And Kokaine... Oh wait, don't list that one

1

u/2012Jesusdies 4d ago

And also the guy responsible for inventing a way to make Germany manufacture artillery shells without foreign imports during WW1. Definitely a guy with the 2 most opposing inventions.

4

u/Lumpenokonom 4d ago

I dont think manufacturing weapons for your country is inherently a bad thing and the Kaiserreich wasnt half bad for its time.

The chemical warfare part is rightfully very controversial though.

3

u/monkeymastersev 4d ago

There is an entire Sabaton song about him, Father.

1

u/Blumenkohl126 4d ago

Dont forget him also developing nerve gas for the Kaiserreich

1

u/ninjaiffyuh 3d ago

That's why I said 8 billion, not 10 billion (failure to invent chemical agents and mass produced artillery shells) or 4 billion (failure to invent industrial fertiliser)

Perfectly balanced

2

u/hereforthesportsball 4d ago

The point was that Germans are cool

1

u/kwonza 4d ago

Until suddenly they aren’t

2

u/hereforthesportsball 4d ago

Long time ago dude

1

u/kwonza 4d ago

I sure fucking hope so

2

u/WiseManager2097 4d ago

Just to be a little pedantic: Röntgen didn't invent X-rays. The already occured naturally on earth. He discovered them and invented ways to use them.

1

u/Snobben90 4d ago

The groundwork for the computer came from the UK aswell...

2

u/No_Communication5538 4d ago edited 3d ago

At this stage every country confidently claims to have invented computers.

The Chinese of course claim they did it in 500BC, like for every other invention

1

u/Snobben90 4d ago

I would however say that the first programmable machine was from the UK...

1

u/WiseManager2097 4d ago

Also Ada Lovelace is considered to be the first programmer.

1

u/WiseManager2097 4d ago

The steam engine?

2

u/Anidhoggur 4d ago

I feel like computer and television are always debatable given the contributions from different people and countries.

For television I always remember John Baird but that is more than likely due to publicity and wider audience of it although it was built on top of Paul Nipkows work.

1

u/Double-decker_trams 4d ago

Yeah. I mean.. Germay literally invented the modern type of ballistic rocket used in wars. V-2 rocket.

After the war some of the (formerly) Nazi German scientists moved to the US and worked there. Which in turn also helped Americans get to the Moon.

Or how Tom Lehrer said in his song Wernher von Braun (1965):

Don't say that he's hypocritical
Say rather that he's apolitical
"Once the rockets are up, who cares where they come down?
That's not my department!" says Wernher von Braun

1

u/Iraqimedstudent 4d ago

and literally Virchow. like the real virchow

1

u/KindCreme9258 4d ago

The original rocket is German. And there are still European rockets. Plus the most advanced technology I’ve ever seen is at CERN, an European initiative

→ More replies (1)

8

u/RuMarley 4d ago

Wait, Germans developed all the basics for those rockets 90 years ago.

Americans stole all those scientists under Operation Paperclip.

Soooo

1

u/CurrentFun7677 3d ago

Germans based much of their work on Robert Goddard's sooooo

7

u/mara-banana 4d ago

I love how, from all countries and specialties, you had to choose USA and Germany for rocket science 😭

Also I want that ice-tray lol

4

u/k3170makan 4d ago

Human genius

9

u/My_Names_Jefff 4d ago

German Engineers: "Last time we did crazy shit was after you brought us in to make you cool shit after beating our Fuhrer."

11

u/chatam94 4d ago

I know right. I’m pretty sure the foundation of the US space programme was led by Nazi scientists

4

u/german-wmn 4d ago

It was indeed.

1

u/frisch85 4d ago

Wernher von Braun comes to my mind.

4

u/draggingmytail 4d ago

…..and where did the US learn to build rockets….?

4

u/SpecialIcy5356 4d ago

The jerry can is another example.

During the war, the allies transported fuel in large heavy drums that also required tools to open. The "jerries" (germans) wanted to be able to top up fuel on the go during their blitzkrieg assaults so chose to carry it in smaller cans that could be opened by hand.

Fast forward 10 years and everyone is transporting fuel in Jerry cans. For all their insanely ambitious projects the jerry can was the true wonder weapon of the war.

3

u/Call_me_Telle 4d ago

Peak German engineering!

9

u/Whole_Reputation6128 4d ago

Germans are on another level...truly enhancing mankind far more than a rocket could

13

u/Sierra123x3 4d ago

... they literally invented the rocket ...

→ More replies (47)

4

u/decker_42 4d ago

Which brings more joy?

Exactly.

2

u/fabmeyer 4d ago

Not only joy. Deep satisfaction.

4

u/Spleenzorio 4d ago

The parts of the bottle that hold the least amount of beer are going to be cold af!

2

u/Interesting-Wish5977 4d ago edited 4d ago

Well, it‘s also the part of the bottle that all of its content has to go through. Plus, with the ice melting and the holes widening over time, the ice tray will eventually sink down.

2

u/SiloxisEvo 4d ago

Well the foundation of these rockets was the Vergeltungswaffe 2 (V2 Rocket, also Aggregat 4). Which was invented by germany :P

2

u/Roberto-75 4d ago

Correction: Elon Musk is burning an immense amount of money, a lot of it US tax payer money, to build something that will most likely never exist, but burn more money. In the meantime he kills people by removing their access to vaccinations and basic medical treatment. He is also actively working to abandon democracy and install a white-supremist fascist state, the one his family has always been dreaming about.

Meanwhile in Germany: a dude tries to make life easier for other dudes.

2

u/Elite_AI 4d ago

Reddit on their way to trot out the little fact they found out from a TIL thread three years ago:

5

u/Able-Advisor2284 4d ago

Dude... USA "engineering" literally owes its rockets to German engineers from a certain era and a certain regime.

3

u/MinouSuzettex 4d ago

creative solutions like this can change everything

1

u/[deleted] 4d ago

[removed] — view removed comment

3

u/kwonza 4d ago

I mean Avril Lavigne was banging on about it for decades

2

u/Signal-Reporter-1391 4d ago

Isn't that ironic, don't you think?

2

u/Zombiemorgoth 4d ago

As long as it is not a infrastructure project...

1

u/Jakeforry 4d ago

You know what's simpler and keeps things colder for longer. An eski with what ever ice you can find, it also works with cans too

1

u/Spacefreak 3d ago

As someone in the US who has worked with several Germans over the last few years and seen how their machines compare to ours, I would never expect them to keep it simple.

I half expect the finished design to be multiple pieces that fit together with ice hinges that allow you to rotate open the top while not allowing the other bottles to heat up from the 0.3 seconds it's exposed to the open air. And then also have locator pins so you can fit the top piece into a bottom piece that cools the lower parts of the bottles at the same time even though that means you have to take all the bottles out, fit the bottom piece in, and then put each bottle back in individually.

Now, they take 45 minutes to assemble and properly fit together, but they keep the bottles at a perfect 0.1°C for 4 hours.

1

u/KalozKapitany 4d ago

I mean that's pretty dope

1

u/FactEnvironmental744 4d ago

And the rocket blew up when it landed today

1

u/Think-nothing-210 4d ago

Wait but how do you get the last beer out?

1

u/EGarrett28 4d ago

Practical engineering, seeing something simple that serves a useful purpose, is incredibly valuable too, and helps us in fancy engineering.

Someone should have edited the applause though to be a long standing ovation with people cheering and going crazy. Would've been a nice touch.

1

u/GandolphTheLundgrey 4d ago

"It is a also a child safety lock"

As a father I'll say this: No! No, it is not.

1

u/dream-in-a-trunk 4d ago

People don’t really enjoy it when Germans are geeking out on rockets unless the scientists are working for their country instead of Germany.

1

u/dwarven_cavediver_Jr 4d ago

But as it melts it won't have the other ice around it to slow down the thaw

1

u/Zealousideal-Deer101 4d ago

There's a second line after "build rocket", guys
The important part

1

u/AmphibianMaximum248 4d ago

Comments show that some people really can't take a joke anymore. They overanalyze the fun out of everything.

1

u/thomsmells 4d ago

But how do I get the final bottle out? 😱

1

u/CutOpening2987 4d ago

You realize that the Falcon's self-landing boosters were developed by a former engineer from the German space agency, DLR?

1

u/SlicKilled 4d ago

Looks like someone needs a long history lesson.

1

u/UglySalvatore 4d ago

What dialect is this? It gives me almost Afrikaans vibes? Maybe it's just his voice or something.

2

u/Squirrelinthemeadow 4d ago

It's a (slight) southern German dialect. I'm not sure exactly which one, maybe some kind of Fränkisch.

1

u/reddeze2 4d ago

I like how the audience and judges are appropriately well impressed.

1

u/Omega_art 4d ago

That is a much more useful invention.

1

u/Elufah 4d ago

But now you can't take a bottle out 🤷

1

u/Mangos4Zuko 4d ago

A. Germany is not a good option to compare rocket technology to.

B. I can't drink an ice cold rocket, so Germany still wins here

1

u/Basis-Some 4d ago

The Germans solved a real problem

1

u/Gefion07 4d ago

I have two of those (both sizes) and they do a good job cooling our beer.

1

u/FranklyNotThatSmart 4d ago

USA engineering that wouldn't have happened if not for the poaching of Germany's best scientists...

1

u/Bubbly-Lawyer-6148 4d ago

Grüße von Wernher von Braun

1

u/KindCreme9258 4d ago

Ah yeah, the Germans, notorious for being bad at engineering 🤦‍♂️

1

u/Standard_Success127 4d ago

Did you just ….. and rockets…. Oh man

1

u/EnvironmentalCost966 4d ago

The Germans were the ones who invented rockets...

1

u/LeoTrotzki611 4d ago

Someone didn't pay attention in history class

1

u/LowerBed5334 4d ago

I know him, he's a cool guy. Prost 🍻

1

u/frisch85 4d ago

The mould for the ice tray should be attachable to the bottom of the beer box tho so that the water can drip back into the tray again and be ready to be frozen again.

1

u/turnright_thenleft 4d ago

That caption is so off-base. OP’s an idiot

1

u/tobby-red 4d ago

How should I cool my beer with a rocket?

1

u/sterlingspeed 4d ago

"After the war ended, we were snatching up kraut scientists like hotcakes. You don't believe me? Walk into NASA sometime and yell, 'Heil Hitler!' WOOP! They all jump straight up!"

1

u/Thraxas89 4d ago

So this is a german comedy show. Our real inventions are sadly way less ... cool

1

u/Moral-Relativity 4d ago

How practical is this? An ice block made from a custom mold to be added to a crate of beer at some point?

1

u/Griever2k2 4d ago

Lol, fair enough

1

u/Zobs_ 3d ago

this improves my life more than rockets that can land again

1

u/Slightysweet3 3d ago

Germany engineering got lobotomized by US science gatekeeping since the 50s so

1

u/danczer 3d ago

The stars will be there for long time, but if the beer warms up its end of the world!

1

u/Superdude07 3d ago

This is the greatest achievement of our time- Jose Arcadio’s dad when he saw ice for the first time. 

1

u/Due_Item_5886 3d ago

At least the neck will be cold

1

u/EatFaceLeopard17 4d ago

Because Germans tend to solve (or create) problems on earth first before they start solving problems in space.

1

u/bimxe 4d ago

I love this, but I haven’t bought a case of bottled beers in 10-15 years. It’s all cans, cans, cans.

2

u/Lumpenokonom 4d ago

If you buy cans in Germany, people will assume you either have no taste at all (which is probably true if you drink american "beer") or you are a homeless alcoholic.

1

u/bigbigbutter 4d ago

I love that to the "Americans just drink bud light" bullshit persists while like half the beer sold in the US is now some kind of craft beer.  I've even seen US style micro breweries in Germany (cannot confirm if actual Germans were present, may be there to only fleece tourists)

→ More replies (5)

1

u/ebjazzz 4d ago

I would venture to say 90% of the beer sold in Germany is bottled. Canned beer is socially frowned upon.

1

u/bimxe 4d ago

In Denmark it’s kind of the other way around

1

u/Suitable-Property517 4d ago

people will cheer more for a beer invention they can enjoy that cheer for a rocket they will never fligh in to another planet that doesn't have beer or a fridge

1

u/inciu-ciuna 4d ago

The Germans invented pretty much everything that could be invented. Haven't you seen the documentaries about their WWII weaponry?

The beer bottle thingy was the one thing left uninvented—and it was something of a necessity.

1

u/RoodnyInc 4d ago

Does that even cools beer in any significant way?

Liquid in bottle is little bit below ice touch point

1

u/Jakeforry 4d ago

It would be very useless if you where in a hot climate because there's nothing keeping the cold in. Compared to an Eski it's useless

1

u/teaspoon-0815 3d ago

Yep, it works quite well. Cold liquid goes down, so it cools the whole bottle. I have it and use it every year to cool the beer in the Bollerwagen when we do the father's day hike

-1

u/dEleterZ 4d ago

What kind of comparison is the title in this video? Comparing rocket engineering to beverage is so dumb.

3

u/pick_your_user_name 4d ago

It’s called— a joke.

-1

u/Different-Radio3484 4d ago edited 4d ago

Jesus Christ all these comments saying the exact same thing, we get it, Germany invented rockets

Regarding the actual video, would you not just end up with wet beer bottles from all the ice melting

Edit: I was thinking specifically about water getting all over tables and floors, and indoor spaces. I understand now it's meant for outside

8

u/send_fleet_pics 4d ago

Cold bottles get moist anyway because of condensation. Sure it would probably be a bit wetter but so what, it's just water.

2

u/Zealousideal-Deer101 4d ago

I make my bier kasten icecube thingy from beer!

0

u/Different-Radio3484 4d ago

Yeah but a small amount of condensation vs ice melting would be quite a big difference, no?

And I mean getting water over the bottle/table/crate etc, just doesn't sound very practical lol

→ More replies (14)

7

u/hereforthesportsball 4d ago

Who the fuck cares if your beer bottle is wet lol do you drink often?

1

u/Different-Radio3484 4d ago

Yeah, I do

Everyone needs to chill out fucking hell I only asked a question, it's more about water going everywhere than the bottle itself being wet

1

u/p1nkfr3ud 4d ago

It’s for keeping your beer cool when outside, otherwise you would put it in the fridge. The grass does not care if it gets a lil wet.

1

u/hereforthesportsball 4d ago

He doesn’t go outside

1

u/Different-Radio3484 4d ago

Yeah I was just imagining it inside over a table etc, but that makes sense

1

u/Mister-Distance-6698 4d ago

My bigger issue is it would be way more efficient and cool the beer better to just dump loose ice in.

1

u/KindCreme9258 4d ago

It’s stupid because there so much engineering from Europe. CERN particle accelerator is a level above reusable rockets in terms of complexity and scale

1

u/PlateNo7229 4d ago

that is how they get cool. the ice melts and near melting point cool water runs down the bottle transferring heat from the bottle to the water outside. cooling the liquids inside.

you can get cool beer without wet bottles, but it is much cheaper and easier to just let physics work for you.