mc_grogor. Bikes. August 10th , 2017.
The dwarf ordinary addressed some of these faults by reducing the front wheel diameter and setting the seat further back. This, in turn, required gearing—effected in a variety of ways—to efficiently use pedal power. Having to both pedal and steer via the front wheel remained a problem. Englishman J. K. Starley (nephew of James Starley), J. H. Lawson, and Shergold solved this problem by introducing the chain drive (originated by the unsuccessful "bicyclette" of Englishman Henry Lawson), connecting the frame-mounted cranks to the rear wheel.
History of the bicycle. Wooden draisine (around 1820), the first two-wheeler and as such the archetype of the bicycle. The "Dandy horse", also called Draisienne or Laufmaschine, was the first human means of transport to use only two wheels in tandem and was invented by the German Baron Karl von Drais. It is regarded as the modern bicycles forerunner; Drais introduced it to the public in Mannheim in summer 1817 and in Paris in 1818. Its rider sat astride a wooden frame supported by two in-line wheels and pushed the vehicle along with his or her feet while steering the front wheel.
Enjoy healthy family time. Cycling is an activity the whole family can do together. The smallest tyke can clamber into a bike seat or tow-along buggy, and because it`s kind on your joints, there`s nothing to stop grandparents joining in too. Moreover, your riding habit could be sowing the seeds for the next Bradley Wiggins. Studies have found that, unsurprisingly, kids are inﬂuenced by their parents` exercise choices. Put simply, if your kids see you riding regularly, they think it`s normal and will want to follow your example. Don`t be surprised, though, if they become embarrassed by your tendency to mismatch ﬂuorescent Lycra when they become teenagers.
Boost your bowels. According to experts from Bristol University, the beneﬁts of cycling extend deep into your core. “Physical activity helps decrease the time it takes food to move through the large intestine, limiting the amount of water absorbed back into your body and leaving you with softer stools, which are easier to pass,” explains Harley Street gastroenterologist Dr Ana Raimundo. In addition, aerobic exercise accelerates your breathing and heart rate, which helps to stimulate the contraction of intestinal muscles. “As well as preventing you from feeling bloated, this helps protect you against bowel cancer,” Dr Raimundo says.
Live longer. King`s College London compared over 2,400 identical twins and found those who did the equivalent of just three 45-minute rides a week were nine years ‘biologically younger` even after discounting other inﬂuences, such as body mass index (BMI) and smoking. “Those who exercise regularly are at signiﬁcantly lower risk of cardiovascular disease, type two diabetes, all types of cancer, high blood pressure and obesity,” says Dr Lynn Cherkas, who conducted the research. “The body becomes much more efﬁcient at defending itself and regenerating new cells.”
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