Wednesday, March 22, 2017

Hitting the Mark

The origins of rifling are difficult to trace, but some of the earliest practical experiments seem to have occurred in Europe during the 15th century. Archers had long realized that a twist added to the tail feathers of their arrows gave them greater accuracy. 

Rifles were created as an improvement in the accuracy of smooth bore muskets. In the early 18th century, Benjamin Robins, an English mathematician, realized that an elongated bullet would retain the momentum and kinetic energy of a musket ball, but would slice through the air with greater ease. Science!


This week, a look at rifles.

TTFN, Fred.

Quote of the week: "Failure will never overtake me if my determination to succeed is strong enough." - Og Mandino (American author, 1923 - 1996)

   Hitting the Mark by fredwine on Scribd

Wednesday, March 8, 2017

An Overreaction to Food Allergies


The cause of food allergies is unknown. Symptoms of a reaction can include digestive problems, hives, or swollen airways. Severe reactions can be life-threatening.

But what if you're diagnosed incorrectly and you don't have food allergies? How can that happen, you say? Read on, faithful reader, read on.

This week, a look at an overreaction to food allergies.

TTFN, Fred.

Quote of the week: "When in doubt, tell the truth." - Mark Twain (American humorist, novelist, short story author and wit, 1835 - 1910)