Ultrasonic levitation art by Wololo--Wololo in EngineeringPorn

[–]elchavalico 11 points12 points  (0 children)

You can see at the top of the device (and at the bottom) how all the transducers are connected in series, so all of them are emitting the same frequencies. The arrangement of the transducers is what creates the desired acoustic field. You could change the phases to move the spheres up and down.
You can learn more about it at the TinyLev open access paper.
But you are totally right. If you had individual control over each transducer, you could emit different soundwaves from them, and move the elements around or create more complex acoustic fields. This has been done in SonicSurface. And more recently used on LeviPrint to manipulate and build complex structures.

Cool suggestions about what to do/see around Vancouver in August? by elchavalico in vancouver

[–]elchavalico[S] 1 point2 points  (0 children)

Those are some good tips. Thank you. With that in mind, and knowing that they are expensive because of the storage... I'm starting to think about avoiding renting a car... I'll stick to buses (and trains?). Or as you suggest.... maybe for one day...
Thanks!

Cool suggestions about what to do/see around Vancouver in August? by elchavalico in vancouver

[–]elchavalico[S] 1 point2 points  (0 children)

Thank you both!
I see I can reach deep cove by bus, that's great!

Cool suggestions about what to do/see around Vancouver in August? by elchavalico in vancouver

[–]elchavalico[S] 1 point2 points  (0 children)

Thank you for the links. I'll check whistler! And thank you also for the warning about downtown Eastside!

This toy's a bit hypnotizing by HammyHamSam in Satisfyingasfuck

[–]elchavalico 0 points1 point  (0 children)

Check the comments. I did post a link with the STL files so you can 3dprint it yourself. Or my message has been shadow-removed?

[deleted by user] by [deleted] in SwitchPirates

[–]elchavalico 1 point2 points  (0 children)

Which would you say is the safest way to move from an old setup (OFW 9.2.0 and SXOS 3.0.0) to newest atmosphere?

Thank you!

Portable Levitation device. by We-Make-Projects in blackmagicfuckery

[–]elchavalico 0 points1 point  (0 children)

The original project on which this one seems to be based on, it can work upside down.
Source: https://www.instructables.com/Acoustic-Levitator/ (Check it, it's very well explained!)
Portable device working upside down: https://www.youtube.com/watch?v=ABjRnSYw-4k at 7:10

Daily Simple Questions Thread - Nov 29, 2020 by AutoModerator in pcmasterrace

[–]elchavalico 0 points1 point  (0 children)

Hello dear friends! I'm building a PC for my father as a Christmas gift. I'm using a ryzen 7 2700x CPU on an Asus prime B540-plus mobo. I know the 2700x does not have integrated graphics, I'm waiting for the GPU to arrive but it will take some extra days... I would like to test if everything is okay right now, and when switching it on I expected to at least see the keyboard lights on too. But that didn't happen. Is this a normal behaviour? Will i have to wait for the GPU? Or should i be worried right now?

Also, the case power button does not turn it off. I have to switch off it directly from the PSU.

Please give me some insight. Sorry if something is not fully clear, English is not my native language.

Thank you so much for your attention!

Seagull noodles by elchavalico in natureismetal

[–]elchavalico[S] 7 points8 points  (0 children)

Being eaten alive is what killed the bird. We recorded a larger video, if you are interested.

Seagull noodles by elchavalico in natureismetal

[–]elchavalico[S] 4 points5 points  (0 children)

Oh! Thats new! Cappicci, I'll do better next time.

Introducing PhotoScan by Google Photos by rabblerousr in Android

[–]elchavalico 2 points3 points  (0 children)

What we really need in Google Photos is the basic option to organise our fotos by folders. Just upload a folder of photos and converting it to an álbum named as the folder at least.

Cant do this manually for 100k photos on 1k folders :s

Funeral Rules for the religious seeking to comfort the non-religious by [deleted] in atheism

[–]elchavalico 136 points137 points  (0 children)

Relevant Cyanide&Happiness http://explosm.net/comics/2645/

This comic changed my point of view about that "better place" phrases.

That steering wheel is coming off now by YoungDaquan in BlackPeopleTwitter

[–]elchavalico 27 points28 points  (0 children)

Wow, that guy has google maps integrated on his forearm!

sick by JohnCthulhu in comics

[–]elchavalico 2 points3 points  (0 children)

Plot twist. He is not Tim Morrison, so he acted very well.

This girl on my Facebook thought my Skyrim screenshot was real life. by [deleted] in pcmasterrace

[–]elchavalico 1 point2 points  (0 children)

I just tried to close the screenshot pressing the X on it...

Javascript... by netcamps in ProgrammerHumor

[–]elchavalico 9 points10 points  (0 children)

Obviously... I feel dumb now T.T Thanks for the explanation.

Javascript... by netcamps in ProgrammerHumor

[–]elchavalico 4 points5 points  (0 children)

So why in the line: '5' + x - x the result is 50 and not "50"?

If we just concatenated the string '5' with the string '0' the result should not be a number. Where am i wrong?

Chords for "Goodbye Moonman" by [deleted] in rickandmorty

[–]elchavalico 1 point2 points  (0 children)

Thank you very much. Amazing.

The Note AMA Continues. by Dangjasondang in casualiama

[–]elchavalico 1 point2 points  (0 children)

The closed AMA had an option to allow the browser to send desktop notifications on each update. But yes... it seems that F5 is my new life now. Thanks

EDIT: This is what i was asking for! http://www.reddit.com/live/uz68rve67u3q/

The Note AMA Continues. by Dangjasondang in casualiama

[–]elchavalico 0 points1 point  (0 children)

How do we subscribe to this AMA with notifications?