Search results
Results from the WOW.Com Content Network
John Boyd Dunlop (5 February 1840 – 23 October 1921) was a Scottish inventor and veterinary surgeon who spent most of his career in Ireland. Familiar with making rubber devices, he invented the first practical pneumatic tyres for his child's tricycle and developed them for use in cycle racing.
Epic! is an American kids subscription-based reading and learning platform. It offers access to books and videos for targeted at children ages 12 and under. [1] The service can be used on desktop and mobile devices. [2] Epic! was founded in 2013 by Suren Markosian and Kevin Donahue [3] and launched in 2014. [4]
Modulating control valves each with 4-20mA I to P converter linked to pneumatic a valve positioner controlling a diaphragm actuator. An air-operated valve, also known as a pneumatic valve, is a type of power-operated pipe valve that uses air pressure to perform a function similar to a solenoid.
Pneumatics (from Greek πνεῦμα pneuma 'wind, breath') is the use of gas or pressurized air in mechanical systems. Pneumatic systems used in industry are commonly powered by compressed air or compressed inert gases. A centrally located and electrically-powered compressor powers cylinders, air motors, pneumatic actuators, and other ...
Still, these books were too expensive and fragile to be practical as children's books. Pop-ups opened the door for the creation of many other types of interactive books for both children and adults. Despite a brief decline in production during the mid-twentieth century, it was a new idea that spawned quickly and eventually became the highly ...
Children's literature portal; Engines: Man's Use of Power, from the Water Wheel to the Atomic Pile is a science book for children by L. Sprague de Camp, illustrated by Jack Coggins, published by Golden Press as part of its Golden Library of Knowledge Series in 1959. [1] [2] [3] A revised edition was issued in 1961, and a paperback edition in 1969.
1001 Children's Books You Must Read Before You Grow Up is separated by reading level, [5] and each title includes summaries with information on the author as well; [6] each picture book title is accompanied by colourful illustrations. [1] Some of the genres included are fantasy, adventure, history, contemporary life, and others. [7]
The first practical pneumatic tire was made in 1888 on May Street, Belfast, by Scots-born John Boyd Dunlop, owner of one of Ireland's most prosperous veterinary practices. It was an effort to prevent the headaches of his 10-year-old son Johnnie while riding his tricycle on rough pavements.