ScienceIQ.com

Making Cars Out of Soup

There was an old TV show set on a spaceship some time in the future which included a machine about the size of a microwave oven. Whenever people wanted something like a meal or a component to repair the space ship, they would go to this machine, press a few buttons, and the machine would make it for them. Today these machines exist, they cannot ...

Continue reading...

MakingCarsOutofSoup
Biology

Wise As An Owl

Are owls the smartest birds? According to trainers that work with them, not by a long shot. Parrots are easy to train and can have extensive vocabularies. Hawks can be taught to retrieve objects. Even ... Continue reading

WiseAsAnOwl
Engineering

The Night Orville Wright Had Too Many Cups Of Coffee

Whenever Wilbur and Orville Wright's colleague, George Spratt, visited their Kitty Hawk glider test camp, lively discussions and arguments on flight persisted until late in the evening. On this ... Continue reading

OrvilleWright
Biology

St. John's Wort

St. John's wort is an herb that has been used for centuries for medicinal purposes, including to treat depression. The composition of St. John's wort and how it might work are not well understood. ... Continue reading

StJohnsWort
Engineering

Infrared Headphones

Infrared headphones use infrared light to carry an information signal from a transmitter to a receiver. Sounds simple enough, but the actual process is very complicated. The human ear gathers sound as ... Continue reading

InfraredHeadphones

Tea Time!

TeaTimeDid you know that a disease of coffee plantations made the British tea drinkers? In the 1700s Britain had many coffeehouses that served as popular social gathering places to discuss current events and conduct business. For example, the famous insurance company 'Lloyds of London' was started by patrons of Edward Lloyd's coffeehouse about 1774. These coffeehouses obtained their coffee from plantations in Ceylon (now known as Sri Lanka), the leading coffee exporter of the time. About 1870 a serious disease, coffee rust, struck these plantations and in 10 years had destroyed half of the coffee production. As a result of this disease former coffee plantations were replanted with more than a half-billion tea bushes.

A pound of tea yields 10 times as many cups of the brew as a pound of coffee, making tea much less expensive than coffee and allowing the lower classes to enjoy a stimulating beverage. So tea became a great leveler of British society.

Although rust-resistant coffee varieties have been developed, races of rust occur that overcome this resistance, and the disease continues to be a problem. Strict quarantines are enforced in coffee growing regions of the world, especially in Central America, in an attempt to prevent the establishment of rust in their coffee plantations.