A Straight Dope Classic from Cecil's Storehouse of Human Knowledge

How come "objects in mirror are closer than they appear"? Why not the right distance?

October 21, 1994

Dear Cecil:

Is it not possible for automobile manufacturers to design and install a passenger's side rear-view mirror in which objects are NOT closer than they appear? This all-but-useless funhouse feature of modern automobile design has always perturbed me, and it seems quite a simple matter to correct. (Hint: substitute the driver's side mirror for the passenger's side mirror … Voilà!)

Cecil replies:

Now, now. The funhouse mirror is supposed to be a safety feature. The mirror's convex surface gives you a wider angle of view to help overcome the notorious right-side blind spot. Inevitably, the wider the view, the smaller the objects in it, giving the false impression that said objects are more distant than they are. That's a danger in itself, but with practice you can compensate for it. There's no compensating for objects you can't see at all, the fatal flaw, maybe literally, with using a flat mirror as you suggest.

Related Posts with Thumbnails

Recent Additions:

A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams
A Straight Dope Classic by Cecil Adams

Send questions for Cecil Adams to: cecil@chicagoreader.com

Send comments about this website to: webmaster@straightdope.com

Terms of Use / Privacy Policy

Advertise on the Straight Dope! Your direct line to thou- sands of the smartest, hippest people on the planet, plus a few total dipsticks.

Publishers - interested in subscribing to the Straight Dope? Write to: sdsubscriptions@chicagoreader.com.

Copyright © 2014 Sun-Times Media, LLC.