Recent content by LurkingEyes
-
L
Troubleshooting Digital Electronics: Why Don't My ICs Work?
I've been working on this some more and I think that the problem Was that the pins weren't grounded. I went looking back through some learning books (which use 4000 series CMOS) I started out with, and they all use a Vcc PBNO Resistor Ground setup, with the A and B of the gate between the PB and...- LurkingEyes
- Post #12
- Forum: Electrical Engineering
-
L
Troubleshooting Digital Electronics: Why Don't My ICs Work?
I drew it like that to make the my point, but...this Sorta solves it...if I use switches ground the pins then yeah the light is only on when both switches are Off...but isn't that a NAND, not an AND? I was under the impression that you had to bring A and B high for Y to be high, not ground them.- LurkingEyes
- Post #10
- Forum: Electrical Engineering
-
L
Troubleshooting Digital Electronics: Why Don't My ICs Work?
Okay, here's exactly how I have it set up, just like is discribed on the datasheet. All components are placed nowhere near each other on the breadboard, but it STILL somehow lights up the LED. Brand new board, brand new 74LS08/74LS32.- LurkingEyes
- Post #7
- Forum: Electrical Engineering
-
L
Troubleshooting Digital Electronics: Why Don't My ICs Work?
The instructions I had said the capacitor was optional for reducing noise, I'd forgotten about using any till now, I'll do that.- LurkingEyes
- Post #6
- Forum: Electrical Engineering
-
L
Troubleshooting Digital Electronics: Why Don't My ICs Work?
Why would it not be at around 4.2v if I'm using a 9v batter that's probably drained slightly? Or do you mean that it should be higher? I measured it with three different batteries, and the outputs never went above 4.5...the highest voltage from a battery was 8.08v, the lowest was 7.4 I believe...- LurkingEyes
- Post #3
- Forum: Electrical Engineering
-
L
Troubleshooting Digital Electronics: Why Don't My ICs Work?
I'm not really new to Digital Electronics, but this is confusing the crap out of me. My school's started a DE class and at the moment we're getting all our equipment worked out and stuff, but for some reason NONE of our IC's work. We're using a 9-volt batter with a 7805 regulator for 5 volts...- LurkingEyes
- Thread
- Digital Digital electronics Electronics Troubleshooting Work
- Replies: 11
- Forum: Electrical Engineering
-
L
Can we increase the wing area vertically?
That Thing would scare the crap out of me. Because that takes a Lot of fuel. With wings you let nature do Some of the work by gliding, and you glide as long as you're moving forward (albeit a powered glide). With that, you basically have a rocket, and we don't have motors efficient enough to...- LurkingEyes
- Post #19
- Forum: Mechanical Engineering
-
L
Graduate Is Faster-Than-Light Travel Truly Impossible?
That's exactly the type of answer I was looking for. Not how I was approaching the problem, but that's the answer I needed. So really, to get that far you wouldn't need to go FTL, just find a way to keep accelerating, for as long as possible. Where .999c is a lot faster than .99c. I had looked...- LurkingEyes
- Post #8
- Forum: Special and General Relativity
-
L
Can we increase the wing area vertically?
http://en.wikipedia.org/wiki/XB-70_Valkyrie It used a delta-wing design, for ease in supersonic speeds, had sort of an accident. Also, this isn't "Vertical" as you first asked, but I'm running with it. And almost the opposite of what you're asking, the Delta Wing design I'm assuming you are...- LurkingEyes
- Post #12
- Forum: Mechanical Engineering
-
L
Graduate Is Faster-Than-Light Travel Truly Impossible?
Gotcha, thanks, that clears up a Lot. I guess I just haven't come to terms with why relative speed doesn't up the limit. I'm going to read around more.- LurkingEyes
- Post #5
- Forum: Special and General Relativity
-
L
Graduate Is Faster-Than-Light Travel Truly Impossible?
You're using C here as light + your speed, or light in a vacuum?- LurkingEyes
- Post #3
- Forum: Special and General Relativity
-
L
Can we increase the wing area vertically?
You mean making the wings Deeper instead of Longer or Taller? Sort of like the space shuttle or the XB-70?- LurkingEyes
- Post #10
- Forum: Mechanical Engineering
-
L
Graduate Is Faster-Than-Light Travel Truly Impossible?
I'm sorry if this doesn't exactly fit in the topic, but it applies to the general subject I guess. I have been pondering on this question for about a week, and now I want to ask it. Why do we have it so ingrained in us that we HAVE to go the speed of light (or faster) to get anywhere? Assuming...- LurkingEyes
- Thread
- Light Light speed Speed
- Replies: 10
- Forum: Special and General Relativity
-
L
Undergrad What Happens If Oxygen Completely Grips Water's Electrons?
Ah, that would make sense. We only covered pH as Hydronium and Hydroxide. I never really thought of water having a two-way reaction. And I wasn't sure if you could actually remove the proton by itself. That said, is it possible to remove Both hydrogen protons?- LurkingEyes
- Post #5
- Forum: High Energy, Nuclear, Particle Physics
-
L
Calculators How Can I Get More Decimal Places on My TI-89 Titanium Calculator?
Also when you press Enter, hit the green diamond button first. That gives you the 'approximate answer' and if you're already doing that, then go to the Mode, display digits, Float 12. It will show all decimal digits up to 12 places (if there are 12) and then it starts rounding.- LurkingEyes
- Post #4
- Forum: Computing and Technology