Non crap plastic glue

From: Eric Smith <eric_at_brouhaha.com>
Date: Tue Nov 4 13:45:58 2003

"John Rollins" <kd7bcy_at_teleport.com> wrote:
> Actually there was a story on the news a few weeks ago saying that
> only "slow" cats like TV. They process information faster so a normal
> cat doesn't see anything on the TV but a bunch of streaky lines - the
> refresh rate is too slow for them.
[...]
> They just watch the scan lines going back and forth.

Should be easy to test this hypothesis by using an LCD TV or monitor.
The LCD material has a long enough persistence that it maintains a
continuous image, as you can tell if you photograph one at a high shutter
speed.

If the hypothesis is true, and cats have short retinal persistence,
on a CRT TV, cats wouldn't see the scanning per se. They'd see a rolling
band, due to the phosphor persistence which is typically between 1/5 and
1/3 of the field rate.
Received on Tue Nov 04 2003 - 13:45:58 GMT