what to avoid / unsafe methods Dark sunglasses Smoked glass Potato-chip bags DVDs Helium balloons Reflection in bird bath Exposed film Polarizing filters
Getting certified eclipse-viewing glasses The National Aeronautics and Space Administration recommends people wear number 14 welders glasses, or special-purpose solar filters, such as eclipse glasses, or hand-held solar viewers.
An indispensable tool for observing Venus (or the Moon), this device consists of a pair of identical polarizing filters
in a rotating ring mount.
Microscopic examination revealed two types of solid inclusions (Figure 2) and a distinct tabby extinction between crossed polarizing filters
net/linked/2013/04/02/apple-scuttlebutt) polarizing filters
," which decreases the chance an onlooker can see what you're looking at or doing on your phone, and will also showcase completely redesigned icons for all of Apple's first-party iOS apps, including Messages, the iTunes Store, the App Store, Safari and others.
Crossed polarizing filters
create the rainbow colors seen in these crystals from Beaujolais wine.
The display features polarizing filters
and anti-glare surface for better readability, even under direct sunlight.
The (mandatory) Malaysian MediTag system uses polarizing filters
in pharmacies to allow the public to check the multi-featured holographic label on their medication.
Manmade quarter-wave plates perform this essential function in CD and DVD players and in circular polarizing filters
The instrument will view aerosols through polarizing filters
that screen out certain orientations of light waves.
using gaseous nuclear spin-polarized [.
said Monday it will invest 30 billion yen to add production facilities for polarizing filters
to improve the image quality of liquid crystal display (LCD) panels at its plant in Yoshida, Shizuoka Prefecture.
Among notable gainers, Fuji Photo Film jumped 150 yen to 3,010 yen on a news report Tuesday that the company plans to boost output of triacetate cellulose film, a material for making polarizing filters
used in liquid crystal displays.