How long does it take for your eyes to adjust to the darkness?

How long does it take for your eyes to adjust to the darkness?

On an average it takes 30 to 45 minutes for your rods to be fully dark adapted to night vision. It also covers things such as Mesopic vision and Scotopic vision, eye health, and how to actually dark adapt. I suggest it as a good read.

What is selective law enforcement?

Selective enforcement is the ability that executors of the law (such as police officers or administrative agencies, in some cases) have to arbitrarily select choice individuals as being outside of the law.

Why is the Oakland A’s mascot an elephant?

After New York Giants manager John McGraw told reporters that Philadelphia manufacturer Benjamin Shibe, who owned the controlling interest in the new team, had a “white elephant on his hands,” Mack defiantly adopted the white elephant as the team mascot, and presented McGraw with a stuffed toy elephant.

How many children can one family have in china?

The previous rules allowed two children for couples in which both parents are only children. The old policy also made exceptions for China’s officially recognized ethnic minorities and rural couples whose first child was a girl or disabled.

How big is a Hippo’s mouth?

 A hippo’s wide open mouth is big enough to fit a 4-foot-tall child in.

How much does the average train weigh?

A freight train weighs MUCH more then 1000 tons. A loaded grain train with 112 cars on average is about 15,000 tons. Loaded coal trains can be as heavy as 20,000 tons.

Which planet has the fastest rotation?

Jupiter is the fastest spinning planet in our Solar System rotating on average once in just under 10 hours. That is very fast especially considering how large Jupiter is. This means that Jupiter has the shortest days of all the planets in the Solar System.

What kind of alcohol is in beer?

An alcoholic beverage is a drink that typically contains 3% – 40% alcohol (ethanol). Alcoholic beverages are divided into three classes: beers, wines, and spirits (distilled beverages).