Mike D

Hey guys :)

I have a science fair project and we need a piezoelectric microphone to turn sound into electricity. My question is, does a piezoelectric microphone produce a voltage when it receives sound? Is the voltage measurable at all?

If it doesn't, then would a piezoelectric transducer work?

Help is appreciated :)

OK so the question is:

An oscilloscope is connected to a sinusoidal AC voltage. [the rest is unnecessary]

The line on the oscilloscope starts moving up and down.

Then they ask, "What happens to the luminous line if the sweeping action is turned off?"

I need an answer now please, because I have an exam tomorrow :)

Jamie and his wife are both carriers of the blonde hair trait, but are both brown-haired. What is the probability that all 4 of their children be blonde haired?

A blind farmer had 20 sheep. 2 of them were white, 12 grey, and 6 black. One day the farmer locked the sheep in 4 chambers, with 5 sheep in each. What is the probability (in percent) that all the sheep in the first room be black?

I created this question so don't try to Google it! :P

I want to know where I can find the newest version of MacTheRipper for Leopard that (obviously) works for Intel Macs. So far I've found version 2.6.6 but it seems old... Can anyone help? I'd really appreciate it!

My Mac will be arriving in a few days and I have an iPod Touch that can only play mp4 videos. On Windows, I can use MediaCoder iPhone edition to encode video files, but I don't know what to use on a Mac. Don't tell me to encode the files through BootCamp, because if I do, I cannot move the files to the Mac hard disk, where I will be keeping my media. In other words, I don't want to encode videos on Windows. Does anyone know a program that can encode videos into mp4 (for my iPod touch) on a Mac?

Here are the specs:

MACBOOK PRO:

CPU: 2.4 GHz Core2 Duo (all new generation)

RAM: 4 GB 1066 MHz DDR3

Graphics chip: nVidia 9600 GT for performance + 9400 for battery life

Hard disk: 320 GB 7200 RPM

OS: Mac OS X Leopard

Screen Size: 15"

MACBOOK (regular):

CPU: 2.4 GHz Core2 Duo

RAM: 4 GB 1066 MHz DDR3

Graphics chip: nVdia 9400 GT

Hard disk: 320 GB 5400 RPM

OS: Mac OS X

Screen Size: 13"

VAIO FW:

CPU: 2.53 GHz Core2 Duo

RAM: 6 GB 800 MHz DDR2

Graphics Chip: Radeon HD 3650

Hard disk: 320 GB 7200 RPM

OS: Windows Vista Home Premium 64-bit

Screen Size: 16.4"

Bare in mind that the FW comes at $1700

the Macbook at $1800

the Macbook Pro at $2270

The Macbook Pro also has the best quality screen, since it is LED backlit. The normal Macbook's screen isn't that good.

The both Macbooks' quality is much better than the flimsy feeling FW.

I am looking for laptops, and have considered the MacBook Pro 2.4 GHz, 4 GB 1066 RAM, nVidia 9600 GT 256 MB. It seems overpriced, but I acknowledge that Mac has some tricks up its sleave and won't disappoint. I also stumbled upon the new VAIO FW 2.53 GHz CPU, 6 GB 800 MHz (though I could customize it to 4 GB), and an ATI Radeon HD 3650 512 MB, with a Blu-ray burner. The MacBook has a slower CPU speed, but a faster RAM speed and a more capable operating system. It's quality is top-notch. On the other hand, the VAIO has a faster CPU and more RAM, a different Graphics card, and a Blu-ray burner.

What I want to know is:

- Is the VAIO's CPU speed advantage substantial? Noticeable much?

- Which laptop has a better GPU? (9600 GT or HD 3650)

- Which RAM configuration is better: 4 GB 1066 MHz, or 6 MHz 800 MHz?

- Should the build quality of the MacBook (better screen, more attractive chassis, solid build) influence my decision at all?

- Is the Mac OS X worth it?

Thanks :)

My 360 got rrod last weak and I don't know what to buy. Here's a couple of things I need to know:

Will Killzone 2 be awesome gameplay wise?

Which console is more powerful (I already know and slightly comprehend the dirty little tech details, but I still don't know what to expect from either console... Please, people who are not well informed do not answer with: PS3 had 2 teraflops, Cell has 8 cores... bull****

Does PS3 have Halo-rivaling shooters?

Does PS3 have enough adventure games (like Kameo: Elements of Power)

Is Playstation 3 the new Xbox 1?

Is Playstation Home shaping up nicely?

Things that worry me:

Not having Halo.

Not have new xbox experience

having to pay an exorbitant price for games (they cost around $80 in my country)

Having to pay $600 for my console

That's it...

Answers really seriously appreciated!

I was just wondering, 'cause 70 dollars is really expensive for a 20 GB hard disk.

I know that some LCDs have 10 or 8 bit panels, but I never knew the color depth of a good plasma tv (Panasonic, Pioneer etc.)

I own a W400 bravia (w400 is the asian version) and i noticed some input lag when playing xbox. I turned off all the picture enhancements, but that didnt help at all. Can you guys think of something?

I am currently in the market for an HDTV, and I am torn between the Panasonic 800u and the Pioneer Kuro 5020FD.

When I went to the TV shop, I saw that the 720p Panasonics are pretty bright. Are the 1080p Panasonics like that? If so, do the Kuro's match their brightness?

I am 12 years old, and responsible for the decision of what HDTV we would buy. My dad is busy working, while my mom is working on our new apartment. Yesterday i posted a question on the forums to ask about the TV, (costs $4000), and they all started commenting on that i am twelve years old and I wouldn't have a chance to buy the TV. (i had to tell them that i am 12 to describe my situation). Anyways, they are all commenting and NOT answering the question, and not taking me seriously. I had to give them a rude comment to have them answer my question, but now they are commenting on my rudeness, and my question was left unanswered. Now I have to create a new profile so that they would take me seriously. Any other solutions to getting my question answered, and to have them take me seriously?this is the link http://www.avsforum.com/avs-v/showthread.php?t=103...

if you want to see exactly what happened, i'm mike!!!!

I'm looking at the pioneer kuro, and it is stated on the web that it has a 40 footlamberts brightness. I was wondering how much is that. I currently own a CRT tv and it is a good deal bright. I was wondering how the pioneer compares to a CRT. How much is the brightness of a CRT in footlamberts?

I've always wondered...

I need a counter top microwave oven - one that looks awesome, heats evenly,reliable, and feature packed.

I have recently started searching for a new refrigerator for my new kitchen, and I stumbled upon the Amana bottom mount fridge. It had the most beautiful exterior and the most spacious interior. Price is not a problem. I just wanted to check if Amana fridges are of good quality since they were bought by Maytag. Amana's history suggests that it is a rather trusted brand. I need a fridge that will last long.