Adam Savage's One Day Builds: NASA Retro-Reflector Replica!
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- Опубліковано 15 тра 2020
- Unibit step bit: amzn.to/2LzbVD6
Retro-reflector prisms: amzn.to/2X140Uv
Nibbler drill attachement: amzn.to/2z51SDh
Adam makes a replica of one of NASA's classic lunar experiments: a laser ranging retroreflector left on the Moon that are used for precise measurement of the orbit and orientation of the Moon relative to Earth. It's a model that makes use of off-the-shelf prisms that mirrors light directly back to its point source, like the mirrors on road markers or bicycles. This replica is of the kind of retroreflector array NASA is sending with current Mars missions. And for this quick build, we see the debut of some tools like the sheet metal nibbler and unibit!
Shot by Adam Savage and edited by Gunther Kirsch
Unibit step bit: amzn.to/2LzbVD6
Retro-reflector prisms: amzn.to/2X140Uv
Reference photo of NASA laser retroreflector: www.planetary.org/multimedia/...
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Joey Fameli www.joeyfameli.com
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Ryan Kiser / ryan.kiser
Jen Schachter www.jenschachter.com
Kishore Hari / sciencequiche
Sean Charlesworth / cworthdynamics
Jeremy Williams / jerware
Kayte Sabicer / kaytesabicer
Bill Doran / chinbeard
Ariel Waldman / arielwaldman
Darrell Maloney / thebrokennerd83
Kristen Lomasney / krystynlo
Intro bumper by Abe Dieckman
Set design by Danica Johnson / saysdanica
Set build by Asa Hillis www.asahillis.com
Thanks for watching! - Наука та технологія
Adam’s excitement whenever he realizes something in the midst of an explanation is honestly so inspiring on so many levels
almost a "eureka!" moment
That literally just happened as I was reading your comment. (Honestly he does that all the time though 😂)
We know and use this phenomenon in software engineering all the time when working in a group. Whenever someone is stuck on a problem/bug, that person explains his problem in great detail to a co-worker. Most of the time while explaining the problem, you'll get an idea of what might be the cause of the problem. We have actually a name for this: It's called Rubber Duck Debugging and has its own Wikipedia article: en.wikipedia.org/wiki/Rubber_duck_debugging
Kai Eichinger I’m in the software field too we use stuffed bears 😄
I love those moments when making stuff. And I actually gave my SO, a software engineer, a Sherlock rubber duck for Christmas one year. He’d loan the duck out to coworkers on occasion.
Adam: "I need a third pair of hands."
*me wondering where the second pair is at*
clamps was the second pair
his feet, and he is not using them efficiently!!!
He accidentally leaked his secret mutation 0.0
Another reason why I like to read comment's before watching the vids. I was cracking up when he said it.
meeeee tooooo
"Finding the picture of the retro-reflector is left as an exercise for the reader."
@Ferd Dorst It does look one, not sure what you're talking about?
Easy, the link is in the description.
@Joe Exotic FTA: "The entire instrument is smaller than a computer mouse and lightweight."
Adam's is a good bit larger than that. Now I'm wondering what size diameter prisms NASA's used!
@@TheNightowl001 yea that was my reaction also, Adam's is a bit large.
@@TheNightowl001 in the Mythbusters episode they show them.
Adam: Here's a picture...
Editor: Where? I don't see it.
Waited for that picture too long as well. Still kind of upset I never saw it. lol
Wait, you didn't see it? It was definitely there. ;)
Here it is (was in the description but I assume editor forgot to put it on the video) www.planetary.org/multimedia/space-images/spacecraft/laser-retroreflector-for-insight.html
@@1morelight Thanks
@@1morelight Nice call !
9 out of 10 times I'm here just for 1 day builds. My favorite series of Tested. Thanks Adam.
me: "why would I want to watch tha... oh okay, I'll just watch"
Ha!
@@tested You've got us all enraptured by "eh whatever sure I'll watch it"
It's just fun to watch Adam do stuff. I learn something new every time.
@@tested You have people watch just because, and then people like me taking notes. Because if you don't want a NASA Retro-Reflector Replica in your life, then what are you doing with your life? 🤣
@@tested Want to tell us about your bike and what you've done to it? I'd bet something's been Savaged !
22:56 I was scared he was going to cut his hand again lol
i saw that and i jumped up from my seat, yikes that could have gone bad!
dammit Jesse you had me stressed for like 5 mins wandering how he was about to possibly hurt him self, i thought the drill bit was going to grab and spin the dome of sharp holes with his hand on it
My heart skipped a beat and my hands got that tingly feeling when I saw that.
@bullsballs i think he was more so referring to the fact that he swiped the exacto knife!
I caught that too! Yikes!
I also puckered a bit when he was swiping off the of the bench with the Xacto blade laying there.
"These aren't 'How To' videos, these are 'What The Hell Happened?' Videos." I laughed out loud. 😂🤣😂
3:40 still waiting for that picture
same
I just had the exact same realization. I skipped back a couple times just to be sure I wasn't being completely dumb and missing it.
No picture... nfi what he's building lol
There is a link in the description
This link is in the description: www.planetary.org/multimedia/space-images/spacecraft/laser-retroreflector-for-insight.html
Reference photo of NASA laser retroreflector: www.planetary.org/multimedia/space-images/spacecraft/laser-retroreflector-for-insight.html
Used for this build: Unibit step bit: amzn.to/2LzbVD6
Retro-reflector prisms: amzn.to/2X140Uv
Nibbler drill attachement: amzn.to/2z51SDh
You can also now follow us on Amazon here: www.amazon.com/shop/adamsavagestested
I worked for United Space Alliance during Shuttle and ISS and one of the hardware I worked on for flights was the TCS (Trajectory Control Sensor) - the square box that sat inside the cargo bay. The TCS would shoot Pulse Wave or Continuous wave laser at the ISS, that was outfitted with retro-reflectors on the outside structure and would reflect back closure data to the Shuttle for docking. One one of the ways we tested the TCS prior to flight was outside at night on the grounds of JSC. We fitted a bicycle with retro-reflectors on the back and would ride the bike away from the TCS while it was shooting either Pulse Wave or Continuous wave laser at the bike. Through radio, the guys would tell the bike rider to speed up or slow down so we could confirm the data coming back was correct!!! Those were fun days and fond memories for me as a technician :)
I really like this version of the Tested. Adam is an amazing host. Thanks for the work. Cheers from south América.
Too me. It’s amazing how he remembers what’s in his cave with everything in there. I have several screwdriver sets because I don’t remember the others.
I really like how, as Adam put it at 27:12, "these aren't how-to videos, these are more like, what-the-hell-happened videos." I've been watching old one-day builds all day and I think that's exactly why I like them, because they're instructional, but they're also about problem solving and working with the mistakes you'll inevitably make during creation. That was one of my favorite parts of Mythbusters, and I love seeing it here.
Interesting subject!
Back in the 70's I designed a system for timing drag boats that used HeNe lasers and retroreflectors to detect when the boats crossed the timing lines (by cutting the beam).There were timing beams set up at the end of the quarter mile to calculate the finishing speed and ET. We used corner reflectors purchased from a company that supplied surveyors (they use them to determine distances) The ones we used were about 3 or 4 inches diameter, made of glass and were rather expensive. (So were the 5mW HeNe lasers back then).
The laser sytem allowed drag racing courses to be set up over very wide water e.g. rivers and lakes.
BTW.. I found out through testing that you have to use a beam expander to get a laser system to work over long distances. It reduces the scattering effects of the air and keeps the beam much tighter.
I would like to install a whole bunch of those to the back of my car for those people with extra bright headlights.
I hate those headlights as much as the next guy, but that would probably violate some traffic laws and increase your chances of getting rear ended.
On a microscale that is the technology behind the reflectivity in license plates and car lights, and bicycle reflectors
Wouldn’t it just reflect the light back into the headlights?
Equally illegal for the exact same reason.
@@FozziesRandomReviews Yes, it would reflect back parallel to the light that reached it, so within the diameter of the retroreflectors it would bounce back and make bright spots around each headlight.
Utterly love Tested's space-related builds!
spaaaaaaaaaaaaace
Another cool everyday use case of retro-reflectors. They are more and more used on precarious construction sites.
For example at the site of some new metro stations (or entrances?) on the London Metro. They were concerned with the stability of the buildings around while the construction was going on. They installed hundreds of reflectors around the construction site on walls, curbs, poles, etc.
Then they used laser tracking devices to permanently scan and measure the position of every of these points to have early warnings about unexpected movements.
I LOVE it when Adam explains things like at 18:10 onwards. Man i wish he would do a series that just about tools and how they are supposed to be used and chreative ways to use them. (especially when you don't have ALL the tools available at home)
Interesting technique for finding that center point on the dome! My technique I use would be to flip it as a bowl, make sure it's level on all sides, put a drop of water (super tiny drop) and if it's dense enough it'll find the exact lowest point of the dome (the center).
So fascinating, definitely more than one way to skin a cat!
Yes, and much faster.
Please Complete All Fields start on a flat surface and use a level on the outer lip. You should get very close. Adam’s method was overkill. I’m sure if you play with math and 3 strings equal to the half of your circumference you’re getting close too.
@Please Complete All Fields Not saying you are wrong, but I literally do this for my projects that involve this EXACT method haha!
I think it's fairly simple to prep the material (AKA WASH IT) before working with it. no dirt or grease here!
Ever heard of a carpenter’s level? Literally allow the dome to rest against neigboring objects whose heights match the radius of the dome and then boom use the level across all 3 objects.
Lastly, It's literally water, It WILL find it's way to the lowest point no matter what obstacle is in the way.
After the tiny drop of water is in the center, I use a pin punch to lightly score the point i need.
Thank you for this engaging discussion.
Or he could of just put his paper of circles on his pillar drill or mill. Center the drill over the paper then wind the bit up and put the bowl on the paper and then lower the bit onto the top. Would of taken all of 2 minutes.
Lots of ways to find the center, but he had a compass, prior to using the clamps. Using that and a pencil would have been easier in my opinion.
That was the most convoluted and error-prone way of finding the apex of a hemisphere I have ever seen. Only Adam can use eight different tools and still end up with a result less accurate than if he had used a single piece of string. :-D
Adam, thank you!! Always fun to watch, listen and learn from you! You always break it down for anyone, (like myself) to understand and look forward to experiment myself. Thank you so much!!
What I love about Adam show is if I like it and understand it I watch once( well a couple of times), I find stuff to enjoy and complain about.
What I really love is not understanding and ready to complain a lot then I watch a few times and look for stuff I can't fathom. Then I feel I've achieved something and can't be bothered to complain. It's easy to complain. Thanks Mr Finger
I use different types of retro reflectors almost every single day, in my job as a land surveyor..
Great,
i was in the workshop where they produced these reflectors in Germany back then for NASA to place them on the moon. They are still there and can be observed from earth.
It was a small but very specialized lens honing 2 men business.
Was a very interesting process and i remember the surface quality was tested via newtons rings.
So how do you see these from 250,000 miles away ? Would like to view them.
@@usd25674
Hi usd,
it's a long time since the 70s but i remember it's said those reflectors are the only things wich can be observed directly from earth, or better said it's possible to watch the reflections. They were used for distance measurements. I think i can do a little research on interweb and find some details and let you know.
Edit:
I easily found a lot in German and here you can start your research in English:
en.wikipedia.org/wiki/Lunar_Laser_Ranging_experiment
These reflectors on the picture were built in Germany.
@@TheElrondo Who were the two men who did this. I have heard one report that NASA used PMT (photo multiplier tubes) to prove this, so that would leave out the amateur astronomer.
Using the inverse square law, it seems suspect that one could send light out 250,000 miles out, then reflect this infinitely small amount of light back to earth , reenter the atmosphere , go through dust and clouds and we could see this again.
So if some one out there has done it would like to see it. Would like to see this for myself.
If I sound highly skeptical it is because I am.
@@usd25674
Well, it's really a long time ago and i didn't pay that much attention to the details back then. I was friends with the son of one of the shop owners and his father showed me the process of "sanding" and polishing the lenses and explained the use of those. I live close to the famous Zeiss factory so lot's of optical glass specialists in my area. For me it was a kind of sensational someone i know works for NASA related stuff.
@@TheElrondo I was hoping for something that was able to be demonstrated. So much of NASA info has to be taken at their word, and I am afraid they fail the smell test. Thanks anyway.
I love that in the retro-reflector you can see the phone he is using and it points to exactly where the camera in the phone is. Instant proof it does exactly what he says it does. Science!
When Adam shows the big prism at the beginning, the way the camera lens is perfectly situated at the meeting point of the prisms' faces is so mesmerising!
I've seen these on bridges over waterways to reflect ships radar.
I have seen those and always wondered and just now realized this. Thank you :)
The difference with those is they are not glass prisms, but rather tuned antenna elements that do for radio frequencies what the prism does for visible and near visible light. They are usually contained in a spherical radome for environmental protection and you can't see the elements inside. They also put them on high power lines and towers where aircraft might be expected. The reason they use prisms instead of 3 first surface mirrors is that the mirrors must be held aligned in a frame, and alignment is fussy and fragile, and first surface mirrors are extremely vulnerable to scratching, while the prism is intrinsically aligned and do not move. (Still very fussy grinding, with flatness and relative angles measured in wavelengths of light). Also a mirror based retroreflector needs to be left open because any diffraction in a cover would affect the parallelism of the return beam, and the open mirror pocket would collect any debris in the environment. For lab work with lasers and such mirror based retroreflectors are fine. The thing that has always astounded me is the size of these things, the one posted by @Ferd Dorst above is a lot smaller than Adam's, the whole thing is described as smaller than a computer mouse, and the prisms are 0.5 inch diameter.
Let’s be honest. We all hate working on round objects.
But that end result tho
....well...
I once had to draw three ovals on a small reasonably flat dome/spherical object, not touching each other, touching the outside, all angled from the edge, so that the whole thing would after cutting it away would leave something like 3 blades, and that whole thing would be mounted on a pentagram.
I thought it was a cool idea, but didn't foresee that hassle.
Calulcating the starting points on te outside was easy, just 3 equally divided points, the middle line of the shapes was not just following a triangle but slightly off, all that was easy, then actually drawing the ovals was very annoying.
Also, it was all gold and white gold, and then later had to set in 3 white gold settings with a ruby in it. This shit is expensive, so no just doing it over and over again or scratching a lot of lines in it because it would be a pain to file and polish that all out and only cost you material and chances to damage the whole thing.
End result:
photos.app.goo.gl/FwUEskVGeEB3kfGW7
I avoid even drawing round objects. As a kid I used coins to draw.
@@gabiballetje Really nice! That's where I would cheat and 3d print a template to trace the ovals on
It's funny how some things will spark a memory from years and years ago. When. Adam explains about the 90% angle thing it reminded me of something that happened to my ex-wife about 30 or 35 years ago. I was in the Army Military Police and we were in our back yard messing around with a pellet gun I had. I had been teaching her how to aim so it would actually hit something. So one afternoon she came out and asked me what I was shooting at. I told her I was shooting at the clothesline pole. She asked if she could try it and I told her sure. I let her know she shouldn't feel bad if she missed because it was a pretty narrow pole. She when ahead and took a shot and it came right back and caught her in the neck. Lucky we were far enough away that when it came back it was only going fast enough to leave a little red mark. I couldn't believe number one, that she actually hit the pole but more importantly that it came directly back at her. Watching this video I now know why. There was a cross pole near the top which sat at a 90% angle to the main pole she was shooting at. I'm sure it hit the pole then ricochets off the other pole and came right back at her. Amazing, it was one in a million shot and she made it. I have to say it was funny. She even thought it was funny.
Some many tricky steps done in simple ways... amazing!!!
I found myself yelling at the screen... "Adam.. the dome is on the shim... it's not the center!!!" Lol
@Emmanuel Goldstein Lol... True enough... I guess it was just that he was going through "finding the centre" so thoroughly, and worked so diligently towards that, it just struck me as being all for naught... lmao. Have a good one.
_"These aren't how-to videos, these are more like 'What the hell happened?' videos."_
"I'm going to creep up on that hole." -Adam Savage
Wow, at this age it's so rare that I hear something that I had never heard before and this interesting...no sarcasm that was really cool to learn about. I'm telling ya, the happy side effect of this quarantine is getting a video from Adam everyday packed with the normal amount of knowledge and skills to but also more personal. I really feel like I'm going through this quarantine with adam lol
This was a really awesome build, Adam. Glad you had fun and got to finish your neat and tricky object. Love from the East coast.
0:26 and 3:33 Adam's smartphone's camera is exactly in the corner of that retro reflective prism. 4:20
betcha can’t guess why
well , that proves the reflectors he bought actually work
And also the effect where multiple reflectors add together to make one overall larger one.
Me: I'm not gonna use trig outside of high school and college
Sees Adam using trig: GOD DAMNIT
Yea... it gets used on many different jobs - albeit - those jobs, including mine, are some of the coolest. :)
Now what is definitely not useful outside of school, is whatever we were supposed to learn from reading Shakespeare. Because I for one learned nothing.
@@CaptainSwift11
You study Shakespeare in order to quote Shakespeare at people.
“Words, words, words.”
- Hamlet
@@1FatLittleMonkey I am perfectly capable of coming up with my own witty quotes! Thank you very much!
@@CaptainSwift11
Sure, but you're no Shakespeare.
"Men of few words are the best men." - Henry V.
Thank you for going into so much detail during the layout portion of this build.
I watch your videos every day whenever I'm alone and doing some work. I never know what to comment though. But I remember a lot of the things you've said. I appreciate your channel so much. Changes my life each time
Vintage space related build? Can't say no to that.
As reddit would call it: Vintage space porn.
I just know that's gonna be a category on p-hub in the future.
I see Mando's helmet on the table in the background.
Really appreciate these handcrafted projects Adam, and I love that a lot of what you make are cool little (or not so little) oddities that suit you specifically.
I was blown away by how, when you showed the final form, the centre of the phone camera was in the centre of all the intersecting lines in the mirrors. A very practical demonstration of how it works. And it looks fantastic.
Adam, please take part in crimson's great guitar build off. It's for charity and would be so fun to see!
When you’re drilling the holes for some reason it makes me feel like you’re torturing an R2 unit
Nah too small maybe a bb8
This was facinating. As an artist. I feel I've learned so much just watching this, that I can apply to my work on sketches and paintings. And it is always a pleasure to watch a true genius at work. For some reason, this put me in mind of Galileo and "makers" of old, and how they somehow created amazing things.
Loved your problem solving for taking the measurements! Spherical/curved surfaces are challenging to measure/mark and the techniques you showed will really really help me in the future! Thanksssss
Adam: Talking about not using a normal drill bit.
Me: Sees test dome in the background.
Jack Evans isn’t this meme format dead? Lol
3:45 "Well, here's a picture of one of NASA's Retro-Reflectors.."
No picture is included.
I'm so glad I'm not the only one who noticed. Must be editing by himself too.
@@DocRigelSome reason I thought they were flat from the MB moon ep
For reference then LAGEOS are two such a satellites that is a sphere of retroreflectors see: en.wikipedia.org/wiki/LAGEOS, which were deployed in 1976 & 1999 should be functional until their orbits decay in around 8.4 Million years
The 1969-1972 moon reflector are flat panels of retro reflectors about 4 foot across.
The reference he is using for reference for this project is a modern one use on a mission about two years ago, I think it was a mission by China.
Or the test sample for the LAGEOS satellite used for ground proving which was a sector of the eventual sphere, as seen here: www.nasa.gov/feature/goddard/2016/now-40-nasas-lageos-set-the-bar-for-studies-of-earth
Thanks for the explanation on regular drill bits vs unibits (step drills).
Using a unibit or step drill is also handy when making large holes in acrylic tubes. We had a rush job when I needed to make 8mm holes in some 70mm dia x 3mm wall tubes. Drilling these out with a regular drill bit just resulted in a lot of cracked holes and ruined tubes unless you were super careful, ie slow. Out of frustration I grabbed a nearby drill with a unibit in it and stabbed yet another ruined tube to punish it for being flaky plastic...lo and the hole went in clean. Another stab and another clean hole. Saved the day, unibit everytime now for acrylic.
I love how you share your mistakes. It shows that even the best make mistakes
Adam: "some chemical engineers may know what brand and type of epoxy I'm using just by it smelling like skunk".
Me (who is most definitely not a chemical engineer): "JB Weld."
Besides, you can see the tube...
It's the year 2020; We're all watching a kindly, charming grandfather putter in his shop, making satellite parts.
Is he a grandfather? I thought he was a just a father at this point. :D
@@eatmedrinkme9628 I'm exactly the same age as Adam and I'm not even a father yet. :P
@@anakondase You're certainly getting up there in years if you still want kids!
Good luck to you
@@tjackman There's plenty that's been older than me for their first.
That 100% makes Adam sound like an 80's-mid 90's cyberpunk character. He just needs to be smoking and wearing mirrored glasses, preferably a trench coat and combat boots. 😂
I love how the concept of retroreflectors is perfectly demonstrated every time the camera looks into one, and the corners line up perfectly with the reflection of the camera lens.
Sounds like a Joey project!?
Can I please just say... since I was a kid watching Mythbusters, the way you approach things, the way you explain them, the excitement and pure joy of knowing how something works and finding such an ELI5 way to teach them. Something about the way you made this item really struck some mythbusters in my brain. Watching you get that "aha!" Moment and explaing your thought process. You have and always will inspire me.. Hope you end up reading this, you have helped shape and mold myself, the way I think and the way I look at things. And I can see the same in my daughter :) Stay Safe, Stay Healthy !
😣: Old Mirror
😏: Retro Reflector
@@GraemeGunn I'm aware of what retro means in this context, thank you for dropping the info though :)
I think you were successful in being funny.
Adam: "it wound be great if i had a way of mounting this but I don't"
me: what about the lathe?
gibberish name that’s more the Abom-Adam?
Yup. Turn a buck on the lathe and pop the cake pan over it. Use the tail stock to drill a hole on center.
Use that draftsman compass. Way easier than how he did it. Still great to watch the way he thinks and works out a project.
Excelsior!! I love that Adam says stuff like that. Also, this build is way harder than maybe it gets credit for being... laying out on a sphere and drilling those holes on center without crushing that bowl and cutting it correctly to fit the cylinder are all so hard to do without screwing it up.
Awesome video - one of Adam's best so far I think!? Reminds me why he was such a great Mythbuster - he really understands the math & science behind the things he builds.
"Thats crossing within 20 thou" Looks like the dome is sitting on your shim Adam.
I noticed that too... he measured the diameter, but i don't think he accounted for his shims it appeared to be resting on
Hmmm. I need to reflect on this for a bit.
And in a couple days, will you reflect back on it? :-D
Awesome build thank you for all your content it’s definitely helping cope with the boredom
You never cease to amaze me with your builds! Love your work
"If you fire a pellet gun…"
I once shot an airsoft gun at a spider sitting in the corner of a room. The plastic sphere reflected on all three surfaces and returned towards the point of its origin to hit me in the dead center of my eye. Luckily my eye was fine (aside from pain).
This taught me how well three 90° planes can reflect objects and that I kind of deserved what happened by shooting at innocent animals...
Spiders are far from innocent. They are 8 legged Satan's pets.
That's all you deserve indeed. Poor spider. Have it checked for PTSD by a vet.
If they come within arms reach of me, they have left the neutral zone.
Now that's instant karma!
No creature that jumps on you in the dark is innocent. Spiders are stalkers.
Do Crimson Guitars diy build off!!!!!!!!! it would be so exciting to see you be a part of it.
Yes ! .. and also he needs to go build a guitar with Ben that will awesome !!
Agreed! Adam would rock at a guitar build, especially if he looks at Ben's videos first.
@@proxxyBean also he needs to see the masking tape and super glue trick
Yes Adam PLEASE do a collab. You two are my two favorite builders on the internet.
Dude! I love your creativity and the way you think you solutions out. Amazing
Mr. Savage, Thank you so much for the daily uploads during this crisis, you're making isolation just a little more tolerable. Cheers
"Here's a picture of one of NASA's retro-reflectors." It may be a bad sign when even the editor isn't watching.
This whole video is a complete editing mess. I really think they uploaded the wrong file or something. The 1weird cuts with a black screen, freezing a few times etc.
Wtf happened?
@Emanuela what the hell, where did you get that idea from him? as far as I know he is quite a committed worker, and the emphasis on him being Asian sounds quite racist. And by the way, wasn't norm that edited the video was Gunther Kirsch, check the video description.
@@matheusbc9622 dude dont swing the racism bat where it doesnt need to be, its a fact that he looks asian and she just stated that hes "a asian guy". It really annoys me when people call everything racist
@@hanutabube yes, that shit was racist. The race of the editor was completely irrelevant, but it was included as part of a description of why Norm was thought to be a bad editor.
My favorite part is when Adam brushes away the metal shavings with his bare hand and then hits the xacto knife.
Always learning something about how to make stuff, every time I watch one of these. Might never make a retroreflector, but the machine shop stuff is useful info for sure.
To be honest, I really love these raw footage-like one day build videos.
Who else spent this video saying to themselves, "Oh, I wouldn't do that like that. I'd do this instead"?
Adam does how Adam does. That's the great fun of it.
Awesome project!
Did NOT like the “break tone,” was very jarring.
thank you for doing this. We know you would still do this but it's great that you film this to show us too.
One of Adam's best videos. I especially liked the parts where he showed us how to use math to find the center placement for the holes, that was cool. Definitely a cool build.
imma pretend I understand🤦🏽♂️
When I was learning trig in math class, it was a bit confusing. But when art class taught me how to use a compass, triangles, and circles to make art, that's what formed a real perspective of how powerful these shapes can be in many facets of design, without having to use complex math. This video is a really good example of that, thank you for sharing!
The moment you started talking about domes, light and reflections I was hooked.
Cool idea. Great result.
Cool how the retro-reflectivity is neatly demonstrated, by the lens of the camera (phone) constantly being centred in the prism.
You'll notice it throughout the video, but especially right at the end.
I had to learn it the hard way many many years ago that a nice set of sharp step drill bits makes such a huge difference.
MAGIC ADAM - FANTASTIC VIDEO - WE LOVE IT !!!!
Don't you just love watching Adam build or make stuff
I love builds like this. I'm watching and thinking aren't you going to sand...then you say you're taking the dome to the sander; isn't that circle off...then you explain how to get circles centered again. Thank you for a fun break in the middle of the day.
As a surveyor, this makes me so happy :) i have had this explained all sorts of ways, Adam did wonderfully
I love the editing of this, kudos
Wow. That's amazing.
this is the best one day build yet
a very convoluted explanation of a retro-reflector. the simple version is it always reflects light back to the source regardless of incidence angle, this is what gives it its name other than its simpler brother the reflector
Not only in space :)
We use them on offshore ships as well. Usually platforms have retroreflectors mounted on corners, on crane bases, hose stations etc. we have range and direction finders on the ships that feed in to the Dynamic positioning system onboard making station-keeping and close maneuvering a breeze.
that's the coolest prism I've ever seen.
I have to go look up that workbench book now. Sheltering at home has cause me to make a lot of my own things now, and that looks useful.
That’s why I like JB weld, you can mix it, then have plenty of time to do all the prep work you forgot to do beforehand! Cures in 12 hrs at room temp or 90 min at 120°F
Something also cool: retro reflectors work for radio too!
Some ships, bridges, etc actually have ones made from metal so they show up really well on radar
satisfying build!
Hello Adam love watching the one day builds. Watching from the south of England in the county of Hampshire.
I enjoyed watching that thanks .
That’s a thing of beauty
That’s some sexy geometry. Can do so much with right angles, triangles, and circles.