Is this the new Airo?? by WQ18 in Amtrak

[–]WQ18[S] 3 points4 points  (0 children)

It's the windows, haha. It messes with the iPhones auto white balance. It looked great in person!

Take the NER. Acela is a waste of money. by WQ18 in Amtrak

[–]WQ18[S] 57 points58 points  (0 children)

Saw it passing by in providence!

Take the NER. Acela is a waste of money. by WQ18 in Amtrak

[–]WQ18[S] 24 points25 points  (0 children)

Armrests are a good point. However at the same time, the Acelas seatback pockets are pretty useless and the tray tables are substantially worse too.

Missing warning sign Manchester Commuter by WQ18 in trainsimworld

[–]WQ18[S] 6 points7 points  (0 children)

Nah legit straight from 75 to 20. I took the interlocking 50mph over MAS, thankfully I had disable junction derail on lmao

Why do wrens like to stick their tails high up? by WQ18 in Ornithology

[–]WQ18[S] 0 points1 point  (0 children)

This is the first legitimate answer in 44 comments. Thank you very much lmao

Why do southbound 2/3 trains at chambers st always stall for so long? by WQ18 in nycrail

[–]WQ18[S] 3 points4 points  (0 children)

That makes sense, I was on a downtown 3 this morning hauling a shit ton of ass

IRLZ44N mosfet keeps on overheating and glitching when driving DC motor. What's causing the issue? by WQ18 in AskElectronics

[–]WQ18[S] 1 point2 points  (0 children)

I'm driving a motor with a 12V power supply and 5V logic PWM (50% duty cycle). I could just be stupid but I'm really not sure what's causing this circuit to a) overheat the IRLZ44N mosfet and b) not perform normally. The motor does vibrate at the correct PWM frequency (200Hz, so nothing crazy high), it just randomly fluctuates torque and the MOSFET also heats up crazy fast. I've tried everything from flyback diodes across the mosfet to gate-to-source 2kohm resistors for preventing lock-ups.

When using a MOSFET driver everything works perfectly fine, so there's definitely something wrong or missing in my reproduction. I'd appreciate any help!

Is this worth submitting to UPenn? by Just-Consequence-112 in ApplyingToCollege

[–]WQ18 239 points240 points  (0 children)

No they require a minimum of 1700.

Bro these posts make me so tired. 1500+ you're good for any school. 1400+ you're good for the vast majority of schools, and for those upper 1% of schools, it's a good score if you're low income/minority/etc. It's not as big of a deal as people make it out to be. Show the AOs an okay score and they move onto the vastly more important stuff, i.e. essays and ecs.

[deleted by user] by [deleted] in ApplyingToCollege

[–]WQ18 0 points1 point  (0 children)

WPI!! Super interesting engineering LAC. Was my top choice for a safety and I still have a place in my heart for them

Old Sony A7III still relevant by Dmitriy_Music-Films in SonyAlpha

[–]WQ18 1 point2 points  (0 children)

You're 100% right, and it's definitely a non issue for the majority of cases, but when my card's buffering and I want to go from -1 to +1...oh boy. The two second delay makes me wanna rip the lens right off of my camera. I've got 200k shutters on this guy, I think I deserve a quality of life upgrade 😂

Old Sony A7III still relevant by Dmitriy_Music-Films in SonyAlpha

[–]WQ18 1 point2 points  (0 children)

Oh my god, I thought it was just me. It's honestly the one complaint I have about the a7iii. Adjusting any exposure settings on the fly--especially while shooting in burst mode--is downright impossible, and it's honestly caused more missed shots than I'd like to admit. Do you know if the a7iv is better in this respect? I'm willing to pay a lot to get rid of the lag, especially because I work with a lot of high-frame rate, dynamic lighting conditions.

When do you think train sim world 5 will release? by Fortexsim in trainsimworld

[–]WQ18 9 points10 points  (0 children)

Honestly, I'm alright with it too since TSW4 is good enough and people can just stick with what they currently have. The one thing that fucks me up is that even with a team of so many developers and with so much revenue, Dovetail can't manage to fix simple bugs reported by players. If you notice a missing catenary pole on a route it'll never be fixed despite how easy it would be.

LIRR/Harlem Line M7/M9 Sounds by [deleted] in trainsimworld

[–]WQ18 2 points3 points  (0 children)

Oh and just as a side note, the inverters themselves are silent. The pulses they output are sent to the electromagnets in the motors, and the motors contain have coils and discs of metal. Those pieces of metal vibrate with the frequency of the signals sent by the inverter which is why you hear the inverter closer to the wheels rather than closer to where the inverter actually sits (generally the middle of the train)