Would 100 1dB speakers sound the same as one 100db speaker? | AskScience Blog

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Saturday, December 2, 2017

Would 100 1dB speakers sound the same as one 100db speaker?

Would 100 1dB speakers sound the same as one 100db speaker?


Would 100 1dB speakers sound the same as one 100db speaker?

Posted: 02 Dec 2017 05:32 AM PST

How does Quantum Entanglement work?

Posted: 01 Dec 2017 02:00 PM PST

How do the particles that are entangled manage to always do the opposite of the second one? Are they communicating with each other if so how? Otherwise is it some kind of force?

submitted by /u/UndeadDeath
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Does the change in an electron’s wave function and probability density function happen instantaneously when it changes energy state?

Posted: 01 Dec 2017 12:14 PM PST

Edit: Specifically for the hydrogen atom for simplicity's sake.

Wondering if this change happens at the speed of light or instantaneously and if instantaneously how does it not violate causality. Does it work like wave function collapse?

submitted by /u/OneBar1905
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Does satellite communication involve different communication protocols?

Posted: 01 Dec 2017 09:23 AM PST

Are there different TCP, UDP, FTP, SSH, etc. protocols for talking to satellites? For example to compensate for latency and package loss.

I imagine normal TCP connections can get pretty rough in these situations. At least with 'normal' settings.

submitted by /u/surgura
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How do fingerprint readers work?

Posted: 01 Dec 2017 05:25 PM PST

What is the cheapest way to make a superconductor?

Posted: 02 Dec 2017 06:58 AM PST

Can really large explosions , like huge volcanic explosions or nuclear tests , alter the earths orbit around the sun ?

Posted: 02 Dec 2017 06:36 AM PST

I am thinking about this in relation to near earth objects . From what I understand most objects have been on the same trajectories for a really long time which makes collisions pretty rare . If earths trajectory is changing does that increase the likely hood of a collision?

submitted by /u/GreenManGhost
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Are there different types of electrons?

Posted: 01 Dec 2017 09:44 AM PST

According to the standard model, each particle is an oscillation in a quantum field. There are different energies of photons. Similarly, can an excitation of the electron field have different levels?

I know that electrons have different energy levels in an atom, is this a separate concept from the one I described above?

submitted by /u/graciousgroob
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Why do gases exert constant pressure on container walls?

Posted: 02 Dec 2017 01:18 AM PST

So pressure is caused because of the force with which gas particles hit the walls of the container, right? But wouldn't a little bit of energy be lost to the walls every time they collide, slowing down the particles over time and consequently lowering the pressure?

I guess my question is, where do the molecules get the energy to keep moving around and hit the walls, and wouldn't they eventually lose that energy with every collision?

submitted by /u/TJNimNums
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What factors determine how long it takes for a system to attain thermal equilibrium?

Posted: 01 Dec 2017 08:39 PM PST

Why don't CPUs have dedicated instruction sets for compression?

Posted: 01 Dec 2017 07:24 PM PST

Computers built in the last decade generally take advantage of the x86 AES instruction set, which is hardware acceleration in the CPU that speeds up the task of encryption or decryption using the standard AES algorithm. Even obsolete processors like mine can encrypt multiple gigabytes per second (!). This vastly exceeds the speed of hard drives, so the result is that there's negligible performance loss for encrypting your data and you might as well encrypt everything all the time.

However, another common task, possibly even more common with even more standardized algorithms, is data compression. As far as I can tell there's no hardware acceleration for this. Is there a technical reason why that's not feasible? Something to do with a larger or much more active buffer? What might be the advantages of different compression algorithms for dedicated hardware acceleration?

submitted by /u/Epistaxis
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Is a twin born through in vitro fertilization more likely to give birth to twins?

Posted: 01 Dec 2017 07:38 AM PST

As I understand it, twins are more likely to have more twins. Does this hold true if the twin was a twin because of in vitro?

submitted by /u/rcrowley74
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When I shoot light from a non-vacuum environment to a vacuum environment, do the photons reach speed of light when they enter the vacuum?

Posted: 02 Dec 2017 03:20 AM PST

If yes, wouldn't that make them gain more energy out of nowhere? If no, does that mean we can slow light down enough to see it move?

submitted by /u/desh00
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Does Pluto have a liquid nitrogen ocean under it's frozen nitrogen surface?

Posted: 01 Dec 2017 08:24 AM PST

How do we communicate with satellites extremely far away?

Posted: 02 Dec 2017 02:56 AM PST

After reading an article on Voyager One, I came to realise that I have no idea how communication works over such a long distance. How long does it take for something so far away to receive communication? How fast do the controls on a satellite like Voyager One respond to our communication? What is the delay between sending information and the satellite receiving information?

submitted by /u/Pluvio_
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What is that new electronics smell?

Posted: 01 Dec 2017 12:56 PM PST

This might be more of an engineering or technology question. Sorry if this isn't the place for it.

I'm writing this on my new phone and am noticing the nice 'new electronics smell' and it smells the same every high-fi, Playstation, TV, computer etc that I've ever opened. Strangely fridges, oven and sewing machines don't have it.

What is this smell and why is it only on certain appliances?

submitted by /u/demoneyesturbo
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How do heart rate monitors in watches (ie Apple Watch and FitBit) work? And how accurate are they?

Posted: 01 Dec 2017 02:24 PM PST

What is bandwidth?

Posted: 01 Dec 2017 04:13 PM PST

Why is it limited like a resource? Can we make more of it?

submitted by /u/Spicy_Memes97
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How does a particle know if an incoming particle is positively or negatively charged? On top of that, why is it exactly that opposite charges attract and like charges repel? Why can't it be the other way around?

Posted: 01 Dec 2017 03:16 PM PST

Why do does dizziness induce nausea?

Posted: 01 Dec 2017 02:17 PM PST

I can't understand what evolutionary advantage you gain from loosing your lunch if you spin around a lot.

submitted by /u/ceristo
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