Closure of Sicily's Catania airport extended over Mount Etna eruption
A closure of Sicily's Catania airport due to an eruption at the nearby Mount Etna volcano was extended for a second time on Monday, the operator said.
A closure of Sicily's Catania airport due to an eruption at the nearby Mount Etna volcano was extended for a second time on Monday, the operator said.
Environment
Aug 14, 2023
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The Dutch use their bicycles around twice as often as their German neighbors in the winter months. Generally, bicycles are used more often in the Netherlands than in Germany. In the summer (June to August) the Dutch use their ...
Social Sciences
Dec 16, 2022
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In the course of the pandemic many European cities seized the opportunity to accelerate the transition towards more sustainable urban mobility. Moving with the times, planners in Berlin created a number of pop-up bike lanes. ...
Environment
Oct 11, 2022
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The world would save nearly 700 million metric tons of carbon pollution each year—more than Canada's annual emissions—if every person adopted the Dutch way of life and cycled on a daily basis, new research showed Thursday.
Environment
Aug 18, 2022
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World Bicycle Day is celebrated on June 3 in support of the idea that bicycles "contribute to cleaner air and less congestion and makes education, health care and other social services more accessible to the most vulnerable ...
Social Sciences
Jun 2, 2022
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Drive-throughs—services that let people order and collect food and drink without needing to leave their cars—are designed with convenience in mind. Whether it's oppressively hot, uncomfortably cold, or we're just in a ...
Environment
Feb 14, 2022
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First-of-its-kind research from the Accessibility Observatory at the University of Minnesota ranks the 50 largest (by population) metropolitan areas in the United States for connecting workers with jobs via bicycle.
Energy & Green Tech
Jul 25, 2019
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Gordon Goodwin and his wife are rediscovering their passion for bicycling in their senior years thanks to new electric-assist bikes. The electric motors provide a gentle kick, making it easier for them to pedal up hilly roads ...
Energy & Green Tech
Jun 26, 2019
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Cycling is healthy, keeps the body supple, exercises the joints and strengthens the back. A company that places great value on comfort is Ergon International GmbH, which manufactures ergonomic bicycle accessories. Handlebar ...
Engineering
Apr 1, 2019
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A RUDN chemist has obtained a compound with a new structural type containing atoms of metals (copper and sodium) in a carcass structure and that is shaped like a bicycle helmet. The compound shows catalytic activity in two ...
Materials Science
Feb 18, 2019
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A bicycle, bike, or cycle is a pedal-driven, human-powered vehicle with two wheels attached to a frame, one behind the other. A person who rides a bicycle is called a cyclist or a bicyclist.
Bicycles were introduced in the 19th century and now number about one billion worldwide, twice as many as automobiles. They are the principal means of transportation in many regions. They also provide a popular form of recreation, and have been adapted for such uses as children's toys, adult fitness, military and police applications, courier services, and competitive sports.
The basic shape and configuration of a typical bicycle has changed little since the first chain-driven model was developed around 1885. Many details have been improved, especially since the advent of modern materials and computer-aided design. These have allowed for a proliferation of specialized designs for particular types of cycling.
The invention of the bicycle has had an enormous impact on society, both in terms of culture and of advancing modern industrial usage. Several components that eventually played a key role in the development of the automobile were originally invented for the bicycle - e.g., ball bearings, pneumatic tires, chain-driven sprockets, spoke-tensioned wheels, etc.
This text uses material from Wikipedia, licensed under CC BY-SA