Physics Van 3-site Navigational Menu

Physics Van Navigational Menu

Q & A: blind people and colors

Learn more physics!

Most recent answer: 02/26/2014
Q:
How do blind people come to know color?
internet drug coupons site prescription coupon
married woman looking to cheat married men that cheat most women cheat
free prescription cards go walgreens prints coupon codes
prescription drugs discount cards link coupons for viagra printable
viagra coupons from manufacturer liberitutti.info drug discount coupons
prescription discount coupons free prescription drug cards viagra discount coupons online
discount prescriptions coupons mba-institutes.com internet drug coupons
lisinopril and bisoprolol lisinopril and bisoprolol lisinopril and bisoprolol
diabetes affect sexuality cialis dosage information diabetes sexuality treatment
viagra bestellen online viagra pillen kruidvat pillen kopen
cialis coupon lilly click transfer prescription coupon
discount prescription drug cards open prescription discounts cards
naproxennatrium click naproxen migraine
augmentin générique arbot.cz augmentin sirop
fluvoxamine (luvox) blog.tgworkshop.net fluvoxamina bula
renovacija stanovanja renovator renova g
lasix injetavel lasix para emagrecer lasix

- Andrea (age 21)
Tiffin University, Ohio
A:
It would seem as if a truly blind person (not just someone who is partially blind, or "legally" blind, or became blind sometime in life) would never be able to experience colors in the way that someone can see does. Nonetheless, we can describe in words all about what colors are.

Different wavelengths of visible light have different colors, and mixtures of light of different wavelengths have different colors. A blind person can feel the thermal energy deposited by light, and so can be convinced that light exists and carries energy. Then it is just a matter of description of what light is and its properties. I'm afraid that for a blind man this may remain abstract and unverifiable, and he may just have to take his friends' word for it all.

You can give a blind person a device that senses light and emits sound or shakes or something, depending on the dominant color of the light striking it. In that way, the blind person can explore what colors are present when and where, but it still may be a bit of an abstraction.

We do the same sorts of things in experimental science, since there are lots of things we cannot directly sense with our eyes, ears, nose, tongue and skin, but can sense with the aid of equipment. Such as infrared radiation, X-rays, lots of colorless, odorless gases, and other things.

Now that you mention it, there is a property of some elementary particles which is whimsically called "color", which plays the role of the electric charge, but for the strong nuclear force instead of the electromagnetic force. Color isn't directly observable, so in a great sense, we are all "blind" to this particular property. But it has lots of observable consequences, so we are happy with the abstraction, even if the name color is somewhat meaningless in this context.

Tom
cheater click wifes who cheat
internet drug coupons site prescription coupon
married woman looking to cheat My wife cheated on me most women cheat
best android spy apps to spy on phones how to spy on an android phone
married cheaters redsoctober.com dating for married men
viagra coupons from manufacturer liberitutti.info drug discount coupons
viagra coupon card blog.brunothalmann.com viagra free coupon
coupons prescriptions blog.brunothalmann.com manufacturer coupons for prescription drugs
diabetes affect sexuality cialis dosage information diabetes sexuality treatment
viagra bestellen online viagra pillen kruidvat pillen kopen
cialis manufacturer coupon link prescription drug coupons
coupons for prescriptions mha.dk drug prescription card
fusidinezuur kopen go fusidic acid
lasix injetavel lasix efeitos colaterais lasix
cialis coupon card evans.com.mx cialis coupon
trental cena link trental nuspojave

(published on 10/22/2007)

Follow-Up #1: Art for a blind person?

Q:
is it possible, to create Work of art that a blind person can see, undersat or enjoy?
cheater click wifes who cheat
married woman looking to cheat My wife cheated on me most women cheat
married men cheat with men why husbands cheat wifes cheat
types of abortions site what happens when you get an abortion
types of abortions site what happens when you get an abortion
best android spy spy on mobile how to spy on an android phone
free prescription cards go walgreens prints coupon codes
imitrex 50mg thepoliticalsword.com flagyl 200mg
online discount pharmacy viagra coupons and discounts coupon for prescription
1 wk pregnant abortion pill article on abortion
can i take antabuse and naltrexone can i take antabuse and naltrexone can i take antabuse and naltrexone
diabetes affect sexuality diabetes sexuality treatment
where buy viagra online http://viagraforsaleuk1.com online viagra buy
cialis price online link cialis price history
cialis coupons from lilly coupon for free cialis coupons for prescriptions
cialis coupon lilly blog.nvcoin.com transfer prescription coupon
fusidinezuur kopen blog.jp-sa.org fusidic acid
seroquel 25 mg site seroquel debljanje
fluvoxamine (luvox) open fluvoxamina bula

- azza (age 30)
Lorton, VA, USA
A:

Try music.

David

married woman looking to cheat My wife cheated on me most women cheat
married men cheat with men women that cheat with married men wifes cheat
types of abortions the weeks of pregnancy what happens when you get an abortion
best android spy open how to spy on an android phone
rite aid prescription transfer coupon open coupon rite aid
coupons prescriptions blog.brunothalmann.com manufacturer coupons for prescription drugs
1 wk pregnant d&c dilation and curettage article on abortion
acheter viagra pas acheter viagra pas acheter viagra pas
cialis manufacturer coupon link prescription drug coupons
cialis coupon card eblogin.com cialis coupons from manufacturer
claritinekombo read claritine za psa
fusidinezuur kopen go fusidic acid
niacine movidafm.net niacin v hrani
proscar vs propecia for hair loss proscar pris proscar pris
seroquel 25 mg site seroquel debljanje
fluvoxamine (luvox) blog.tgworkshop.net fluvoxamina bula
buscopan hund buscopan dosierung buscopan dragees
voltaren retard link voltaren spray
prescriptions coupons emergent-ventures.com drug prescription card

(published on 02/26/2014)

Follow-up on this answer.