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w1ndex (Member Profile)

Tesla driver loses control as car speeds down street

newtboy says...

That’s Tesla’s position…but no.

The man had been complaining about the brakes not working properly for months according to his family (yet kept driving, making him culpable imo).

It’s easily possible his brake sensor failed on the pedal, then there would be no light. Since I assume, to be capable of autopilot, Tesla brakes are by wire/electrical, not hydraulic, a simple sensor failure means no brakes at all and no brake lights. (And no record that he hit the brakes)

Again, never once heard of a panic pedal misidentification lasting 1/2 that long. Possible, but unlikely. 99/100 of pedal misidentification are well under 1 second mistakes during parking. There have been many reports of throttle sticking/ accelerating without throttle input in teslas.

Since Tesla denies fault EVERY TIME NO MATTER WHAT, and hides the vast majority of driver assisted crashes, I’ll wait for the third party investigation, but on the surface, to me, it looks like a software (or hardware) failure….and that’s what the driver says too.

bcglorf said:

Not that I want to be siding with the corporation, but I'm inclined to believe that at least the brake lights would've remained connected to pressing the brake pedal, no?

And... not seeing any brake lights in that video, it looks like driver error and then panic.

How one NASA image tells dozens of stories

spawnflagger says...

interesting video, but many of his same examples were in this 2012 NASA video: https://youtu.be/Q3YYwIsMHzw

Also, not to detract it's usefulness (and cool factor), but many people seeing this photo think that's how the Earth actually looks at night - it isn't. That composite uses satellite data from Suomi NPP's VIIRS sensor, which can detect much dimmer light than the human eye, and part of the compositing process was to normalize brightness of individual pixels (so dim lights get brighter, and bright lights don't washout adjacent pixels). More details here:
https://www.nasa.gov/mission_pages/NPP/news/earth-at-night.html

Even some cool night-time videos from ISS (example: https://youtu.be/FG0fTKAqZ5g ) are made using still photos with long exposure time (1+ seconds) See FAQ.

This did lead me to a live webcam from ISS that I didn't know existed: https://eol.jsc.nasa.gov/ESRS/HDEV/

The Plane That Will Change Travel Forever

noims says...

Really interesting. Like @StukaFox I was thinking about the window issue. I've heard that one reason window shutters need to be open at take-off and landing is so emergency crews can look in as well as cabin crew looking out.

One funny point of wording too. At 13:24 when talking about sensor failure he says how redundancy in design is so necessary. In light of this I found it funny that his conclusion regarding pressure vessel structure at 22:37 was that having a hardened skin around an arched pressurised section is a waste because it makes the internal section entirely redundant. OK, so I agree with him on both points, it just made me smile.

Land of Mine Trailer

newtboy says...

From what I can find...timers and/or sensors that arm them after being deployed.
Weighted bottoms and/or little parachutes. Many types function in any position too, so upright doesn't matter.
Even ground based deployment is usually tossing them mechanically from a vehicle by the thousands, not by hand.

https://videosift.com/video/M139-Volcano-Mine-System

BSR said:

How did the mines not explode after being dropped from the air?

And how did they land with the trigger facing up buried in the sand?

Rheinmetall Air Defence

newtboy says...

Stick with what works.
Sensors are complicated, expensive, and can easily fail, timers by comparison are cheap, simple, and reliable.

SFOGuy said:

Huh; so rather than building a sensor into the shell, it's back to a time-to-explosion technology.

Rheinmetall Air Defence

Doctor wears six face masks to debunk lack of oxygen myth

cloudballoon says...

For the alt-fact conspiracy believing nincompoops, I'm afraid this video is not good enough to convince them. They'll dispute the heck out of the video as a "fake setup."

I can think of:

1) Need to zoom out more so the sensor is clearly shown to be attached to the monitor at all time

2) no cutting out frames (speed up segments are OK?),

3) show the effect on the indicator's ### by not having the sensor attached to the finger (e.g. drops down to 00 or Error), and,

4) show the number by holding the breath (nostrils pinched & mouth closed) for an extended time to see it drops significantly as verification.

With You, Spot Can : Boston Dynamics Spot Commercial

dfawcett1337 says...

Great so we have a dancing set of sensors? It can walk and I would imagine bring you things and can sense things. How is this not just a very expensive dog? Wait, I could strap a go pro to my dog and voila!

Plane Spotting in Death Valley

SFOGuy says...

The King Air at 2:50 (orientation flight?) and the NASA flight at 6:23 (gotta be just for fun lol; unless they are testing some sort of special height-above-ground-sensors?

How the Soviets One Upped The West: The TU-114 Story

SFOGuy says...

Wait; wasn't that one of the loudest aircraft ever made too? As in--the military version could be traced by SOSUS sensors and NATO fighter aircraft directed to intercepts could hear the engines drumming through their canopies? (as mentioned at 7:43)

I mean; what was the noise level INSIDE the aircraft?

Police Spike Strip Causes Accident

BSR says...

Some sensors take into account how fast the vehicle is moving. This vehicle wasn't moving. Also it was hit from the side so the front sensor was ok. Even though the vehicle was hit on the side the impact probably didn't exceed the limit for deployment. That's my limited educated guess.

Mordhaus (Member Profile)

Mordhaus says...

Small update re: my condition. The ultrasound didnt find a hernia, although it was an amazing amount of fun (sarcasm) having some unknown lady groping me for 30 minutes and leaving me with a small towel to deal with the literal POOL of liquid that they use to make the sensor work.

The right testicle has went down in swelling some, but it is still about 2-3 times it's normal size and it is uncomfortable sitting for any length of time.

I'm almost done with the medication they gave me (doxycycline because they think it got infected and prescription aleve, which is nigh useless for the aching pain) and I am due to go back on the 21st for a re-evaluation.

If the swelling doesn't go down more, they may want to discuss methods of draining the excess fluid. Not looking forward to that. Hopefully I will be back soon, bear with me.

Apple under fire for allegations of controversial business

Mordhaus says...

*quality

Also, he was correct, in humid environments the color sensors will trip even if the device has not seen water damage. Happens on cell phones too.

A Dragon Torched My Hand (How Do VR Haptic Gloves Work?)

MilkmanDan says...

By far the best class I took while getting my Computer Science degree was "Software Engineering Project". We got assigned a project and divided up into teams including CS, CIS, and MIS majors. The MIS people managed and divided up assignments, and the CS people handled different aspects of the programming, like data structures / algorithms / UI / whatever.

This looks like an extremely fun and interesting extension of that. There's CS guys programming, EE guys doing hardware / sensors / haptic panels, full-on Engineering guys doing fluid dynamics, etc.

Destin seems like a great "jack of all trades" type that can get in there and ask really smart questions off the cuff. All the guys geeking out and being impressed with his intuitions and yet hesitant to confirm anything is hilarious to watch.



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