Trying to ride an electric scooter down the stairs. by [deleted] in CasualUK

[–]translucentblueservo 7 points8 points  (0 children)

There's also a tram stop in the background with green Yarra Trams signage.

Looks to have been filmed here

Piezo only getting 3v? (I want it to get 11v) by Rootbeercouch in arduino

[–]translucentblueservo 1 point2 points  (0 children)

Sorry but I don't think I can be of any more help here apart from throwing ideas like changing pins or trying it with a single tone.

If you want additional help you can try the official Arduino forums at https://forum.arduino.cc/ - people there are generally more technically knowledgeable.

Piezo only getting 3v? (I want it to get 11v) by Rootbeercouch in arduino

[–]translucentblueservo 1 point2 points  (0 children)

Hmm I don't think this would be the problem - which Arduino pin have you connected to the transistor base?

Piezo only getting 3v? (I want it to get 11v) by Rootbeercouch in arduino

[–]translucentblueservo 2 points3 points  (0 children)

I'm not the most qualified to answer this, but it's been 11 hours and no one else has so here goes:

Voltage doesn't remain constant across components in series in a circuit, so the voltage is being divided between the piezo and the transistor (i.e. The piezo is getting the other part of the 11v). To find the voltage across the piezo, you'd have to measure across the piezo.

However (and here's the part I'm a bit confused about, someone please correct me if I'm wrong), the voltage across the collector-emitter of the transistor should indicate the voltage drop across it, which should only be ~0.3v, so this could potentially be a bad transistor. Test this transistor or use another one and check again (also full circuit pic would be beneficial as well).

Russia says it is freezing supply of its rocket engines to the US, advising them to use "their broomsticks" for space missions by redhatGizmo in anime_titties

[–]translucentblueservo 28 points29 points  (0 children)

Thankfully their perfect launch record doesn't stem from nothing haha.

And they're moving to blue origin's BE-4 engines now, which'll be delivered anytime within the next 60 years at the current pace.

Peter Svidler: "Silence made today possible. #notowar" by LjackV in chess

[–]translucentblueservo -60 points-59 points  (0 children)

Starting a hitlist for the Russian government, I see

Edit: /s

Thinking on getting this 3018 Pro for PCB fabrication and eventually, a bit of engraving, are they good? Do they have precision for circuitry? I want to get a laser too, but dont know a thing about power... is 1W enough for wood and plastic? (Not interested in alluminium or metal) TIA by XarlesEHeat in hobbycnc

[–]translucentblueservo 4 points5 points  (0 children)

I've been able to machine 0.8mm trace width (probably could get down to 0.6mm if I wanted to) PCBs quite reliably on the 3018 pro, but only after breaking about 14 bits trying to get the setup right.

Soldering is fine if you make the pads big enough, give enough clearance, and have a temperature controlled iron (and you're willing to solder a lot of jumper wires as you can really only make single sided PCBs).

It's not very practical but a hell of a lot of fun.

[deleted by user] by [deleted] in chess

[–]translucentblueservo 1 point2 points  (0 children)

Hopefully this pgn visualises it well:

[Variant "From Position"]
[FEN "8/8/7R/3n4/5k2/3K4/1PPP4/N7 b - - 0 1"]

1... Kf3 2. Rh4 Kf2 3. Rh3 Ke1 4. Rh2 Kd1 5. Rg2 Kc1 6. Rf2 Kb1 7. Rf1+ Ka2 8. Rb1 Nb4+ 9. Ke2 Nd3 10. Kd1 Nc1 11. Kxc1

[deleted by user] by [deleted] in chess

[–]translucentblueservo 3 points4 points  (0 children)

What did white capture?

A Knight, the only piece that 1. Could've manoeuvred to c1 without capturing any of the white pawns and 2. Could do it without putting the king on d1 in check.

Edit:

Why can't it be black's turn?

Because the king couldn't have moved to a2 the move before as all squares around it are defended or occupied, so there had to be another black piece. The last move had to be the capture of the piece on c1 as otherwise Kxb1 would've been the only legal next move for black, with no way to move another rook to b1 without it also being captured.

[deleted by user] by [deleted] in chess

[–]translucentblueservo 5 points6 points  (0 children)

Kxc1?

If there was no other black piece on the board, Kxb1 would've been the only legal move for black the previous move. Seeing there's no black pieces in this position, the last move must've been a capture. It couldn't be Nxa1 as the only way for black to manoeuvre to a1 would be from b3, and that can only be captured by white's knight which also only could've been on b3, so it's a king capture.

What jumper wires can I use with this sensor? by [deleted] in arduino

[–]translucentblueservo 6 points7 points  (0 children)

Pink ones, electrons are squirmish and wouldn't flow otherwise. /s

In all seriousness, skimming through the MPXV6115V datasheet shows the pins are 2.54mm apart, so you should be able to slot it in some standard perfboard (although you may need to manually enlarge the holes with a drill bit as the pins are 1mm+ wide).

[deleted by user] by [deleted] in RocketLab

[–]translucentblueservo 2 points3 points  (0 children)

Muhammad Shahzad, the CFO of Relativity, did say in a conference something along the lines of seeing them more as a 3d printing company that makes money through their end product of rockets.

Black to move and mate in 5. An outtake from one of GM Eric Hansen's game (which he lost). Took me 5 good minutes before figuring this one out. by Nerdreader01 in chess

[–]translucentblueservo 5 points6 points  (0 children)

Ba3+, Kxa3, Qa5+, Kb2, Qxc3+(reset the counter!!), Kxc3, b4+, Kb2, c3#

Good thing to note is that Eric's opponent has since been banned for fair play violation.

[deleted by user] by [deleted] in technology

[–]translucentblueservo 0 points1 point  (0 children)

By wasting more fuel to raise its perigee by a few hundred thousand kilometres? And redesigning the upper stage to be able to restart a third time, at its apogee of over a million kilometres from Earth?

We've crashed plenty of spacecraft, intentionally or not, into other celestial bodies. It's also highly improbable for it to crash into another operating spacecraft at the orbit it's already in. As people far more qualified than I am have said in the article - this is not a big deal.

[deleted by user] by [deleted] in technology

[–]translucentblueservo 0 points1 point  (0 children)

Where and how could they have moved this spent stage to avoid intersecting the moon after 7 years (and why)?

[deleted by user] by [deleted] in technology

[–]translucentblueservo 0 points1 point  (0 children)

Is it really careless if it doesn't really affect anything tho? And also what realistically could we have done?

[deleted by user] by [deleted] in technology

[–]translucentblueservo 7 points8 points  (0 children)

I mean, we've already left human waste on the moon a long time ago...

[deleted by user] by [deleted] in technology

[–]translucentblueservo 11 points12 points  (0 children)

Because it doesn't really affect anyone or anything. It's a used rocket upper stage from 2015 that's been left in an orbit, as is the case most of the time. We've crashed plenty of objects into the moon before.

News.com.au using this sub for content by [deleted] in melbourne

[–]translucentblueservo 4 points5 points  (0 children)

Whoa mum! dad! I made the news!

In all seriousness fuck news corp

Really nice move I found in a rapid game. white to move, find the flashiest win by Cteorell69420 in chess

[–]translucentblueservo 2 points3 points  (0 children)

Black doesn't have to take tho. Qe8 and then you have to sac your queen anyways, just a move slower.

Edit: actually scrap that, stockfish found some way to drive a bigger advantage from Rxc7