Ask a physicist anything. (2)

[pgp_protector]

How can we see if there is no brain to interpret that we are seeing and what we are seeing?

A living eye and a dead brain doesn't see anything.

Why do the Photons stop causing chemical reactions in your living eye if the brain is dead?

 

[TerranceL]

PGP your sig cracks me up everytime I read it.

I knew a guy on a forum who actually used posted pictures to find peoples ip's then try to track them down.

 

[pgp_protector]

PGP your sig cracks me up everytime I read it.

I knew a guy on a forum who actually used posted pictures to find peoples ip's then try to track them down.

I was tempted to use the Google APIs and the PHP script to show a Google Map of the IP's Location, but I figured that would freak people out too much, I've gotten more than a few PMs with just this sig I could just see the PM's I'd get if it showed a Map of their location (Well the IP's location )

Something along these lines -> http://www.iplocationfinder.com/

 

[Wiccan_Child]

Physics riddle:

Do we see with our eyes, or with our brain?

Our eyes, inasmuch as our eyes are the organs that physically interact with light. Our brains, inasmuch as our brains interpret the photochemical reactions in the eye into an approximate picture of reality.

So, your question is moot, since it assumes a false dichotomy: we see with both our eyes and our brains. An eye without a brain would react to light, but 'we' wouldn't be able to interpret those reactions (without a brain, 'we' don't exist). A brain without eyes would have no reactions to interpret.

It also depends on what you mean by 'see'. If you're going to get into the nitty-gritty about what it means to 'see', you have to be clear what your terms are.

 

[Wiccan_Child]

I was tempted to use the Google APIs and the PHP script to show a Google Map of the IP's Location, but I figured that would freak people out too much, I've gotten more than a few PMs with just this sig I could just see the PM's I'd get if it showed a Map of their location (Well the IP's location )

Something along these lines -> IP Location Finder

I think iplocationfinder is a bit out... it says I'm in Birmingham, when I'm actually in Bristol (that's about 100 miles out!).

 

[pgp_protector]

I think iplocationfinder is a bit out... it says I'm in Birmingham, when I'm actually in Bristol (that's about 100 miles out!).

Well true it's not 100% accurate, but just having it show a map saying (I think I might visit this area ) would freak some out.
(And actually I'm glad you can't use an IP to get an super accurate location)

 

[Wiccan_Child]

Well true it's not 100% accurate, but just having it show a map saying (I think I might visit this area ) would freak some out.
(And actually I'm glad you can't use an IP to get an super accurate location)

You can, though: I live in a small town called Nailsea, and before I got AdBlocker, I was inundated with messages about "Hot, Single Women in Nailsea". So either they're using my IP to track me down to the nearest town, or there really are Hot, Single Women in Nailsea.

Here's a question: why can my IP be used to guesstimate my location? Who assigns it to my particular computer, and how, and why does it encode geographic information?
(I don't know the answers to these questions, so it's impossible that anyone else will).

 

[pgp_protector]

You can, though: I live in a small town called Nailsea, and before I got AdBlocker, I was inundated with messages about "Hot, Single Women in Nailsea". So either they're using my IP to track me down to the nearest town, or there really are Hot, Single Women in Nailsea.

Here's a question: why can my IP be used to guesstimate my location? Who assigns it to my particular computer, and how, and why does it encode geographic information?
(I don't know the answers to these questions, so it's impossible that anyone else will).

Your IP is assigned by to your ISP in Blocks so IP address can be tracked down to the who is providing them by just about any whois server. The ISP then assigns you either a dynamic IP address that you might hold onto for a while, or a static IP address

So depending on what database is queried when getting info on an IP it just may give the Main Address for whom owns the whole block of IP address, or it might return that this block of address belongs to an ISP in Nallsea.

When you systems also makes a request from a server for a file, you can also get Computer Info, like what OS they're using, Screen Resolution, Browser, and other fun stuff

 

[Doveaman]

Our eyes, inasmuch as our eyes are the organs that physically interact with light.

Do we see with a telescope?

An eye without a brain would react to light,

Does a telescope see?

 

[pgp_protector]

Do we see with a telescope?

No, we use eyes to see.

Does a telescope see?

Ones that have Sensors do.

 

[Wiccan_Child]

Do we see with a telescope?
Does a telescope see?

As I stated in a previous post, "It also depends on what you mean by 'see'. If you're going to get into the nitty-gritty about what it means to 'see', you have to be clear what your terms are". A telescope magnifies an area of incident light, thus allowing the eye to resolve what would otherwise be too small. If that constitutes 'seeing with a telescope', then yes. If it doesn't, then no.

Clarify your terms, and you will get a clear answer. Keep your terms vague and ill-defined, and you will get a vague and (presumably) unhelpful answer.

 

[Doveaman]

As I stated in a previous post, "It also depends on what you mean by 'see'.

Is there more than one way to 'see'?

 

[LifeToTheFullest!]

Is there more than one way to 'see'?

You just saw Avatar. AmIright?

 

[Wiccan_Child]

Is there more than one way to 'see'?

Obviously, that depends on what you mean by 'see'. If you define 'seeing' as 'photochemical reactions in the retina', then one can see with either rods cells, cone cells, or an artificial photodetector (whether that counts as three separate ways or one general way is, again, dependant on your terminology).

Clarify your terms, Doveaman .

 

[pgp_protector]

Is there more than one way to 'see'?

yes
See Definition | Definition of See at Dictionary.com

 

[catzrfluffy]

0_0 All cows and deer everywhere all over the entire earth simultaneously all face either magnetic north or all face magnetic south:
Google Earth Reveals Sixth Sense of Cattle, Deer | Wired Science | Wired.com

It can be seen on google earth.
Powerlines mess up their direction:
[ Lost in the Landscape ] » electromagnetic fields
Science is still trying to figure out the actual point of this:
Magnetic alignment in grazing and resting cattle and deer — PNAS
Any ideas?

 

[Cabal]

0_0 All cows and deer everywhere all over the entire earth simultaneously all face either magnetic north or all face magnetic south:
Google Earth Reveals Sixth Sense of Cattle, Deer | Wired Science | Wired.com

It can be seen on google earth.
Powerlines mess up their direction:
[ Lost in the Landscape ] » electromagnetic fields
Science is still trying to figure out the actual point of this:
Magnetic alignment in grazing and resting cattle and deer — PNAS
Any ideas?

i have an idea

suspend them by thread and use them for navigation

srsly

it will change the world

 

[Wiccan_Child]

0_0 All cows and deer everywhere all over the entire earth simultaneously all face either magnetic north or all face magnetic south:
Google Earth Reveals Sixth Sense of Cattle, Deer | Wired Science | Wired.com

It can be seen on google earth.
Powerlines mess up their direction:
[ Lost in the Landscape ] » electromagnetic fields
Science is still trying to figure out the actual point of this:
Magnetic alignment in grazing and resting cattle and deer — PNAS
Any ideas?

Interesting. There are papers on this, so I'm convinced!

 

[Cabal]

ha i've just remembered

the symbol for magnetic permeability is mu

which sounds like moo

this will probably keep me happy all day

 

[Nathan Poe]

i have an idea

suspend them by thread and use them for navigation

srsly

it will change the world

You're going to need a lot of thread -- and how's a boy scout supposed to lug around one of those?