Hver fann upp bílinn ?

Hver fann upp bílinn ? Við því fást mörg svör.En að gamni fann ekki Dunlop upp Bílinn ? Nei hann fann upp loftfyllta hjólbarðann.Hjólbarðinn var forsenda fyrir almennri notkun á bílum.Uppfinning fjórgengisvélarinnar var afrek en án loftfyllta hjólbarðans hefði bíllinn aldrei slegið í gegn.Verið mest notaður sem vinnu og vöruvagn og þessháttar ,en aldrei mikið til mannflutninga.Má segja að loftfyllti hljólbarðinn hafi gert bílinn notendavæanan. Notendavænt viðmót ?

The first practical pneumatic tire was made by John Boyd Dunlop, a Scot, in 1887 for his son's bicycle, in an effort to prevent the headaches his son had while riding on rough roads (Dunlop's patent was later declared invalid because of prior art by fellow Scot Robert William Thomson). Dunlop is credited with "realizing rubber could withstand the wear and tear of being a tire while retaining its resilience".[4]

Pneumatic tires are made of a flexible elastomer material, such as rubber, with reinforcing materials such as fabric and wire. Tire companies were first started in the early 20th century, and grew in tandem with the auto industry. Today, over 1 billion tires are produced annually, in over 400 tire factories, with the three top tire makers commanding a 60% global market share

http://en.wikipedia.org/w/index.php?title=Tyre_(wheel)&redirect=no

Athugasemdir

[Númi (IP-tala skráð) 13.5.2010 kl. 22:49]

Las það fyrir þónokkru síðan að fyrstu loftfylltu hjólbarðarnir,hafi verið á reiðhjóli.(tímarit Lifandi Vísinda.)En flinkur var Dunlop karlinn.(ég þarf að grafa þetta eintak upp og vera viss.)