Rabu, 13 November 2013

Why are tornadoes so violent?

bike helmets 101 on HCI Helmets 101 HCI - Spiked German Gloss Novelty Motorcycle Helmet ...
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Why does It destroy everything in It's way? And how do tornadoes kill people?


Answer
Winds rotating at 100 to almost 300mph alone are enough to destroy many structures, but when you add in the debris from everything the tornado has destroyed you have winds plus airborne missiles. A simple 2x4 piece of wood can penetrate a brick house all the way through to interior walls. There's even a picture of a piece of wood sticking out of a refrigerator! Debris can hit people and kill them, walls can fall on them, or they can be lifted and dropped. That is why it is so important to have a plan, have a safe place to go, and have the proper precautions.

Every household should have a NOAA weather radio and know how to program and use it. If a severe thunderstorm warning is issued, be alert. Tornadoes can come even if no tornado warning is issued. If a tornado warning is issued, take shelter immediately. Do not waste time to verify that you are in danger, just take shelter. Put your shoes on, put babies in car seats, and put a helmet (bike, football, motorcycle, whatever you have) on every person. Preferably get underground or into an approved tornado shelter. If you can't, get to the lowest floor and into the center. Put as many walls between yourself and the tornado as possible. Get in, get down, cover up! Abandon mobile homes for a sturdy building or shelter. If you are caught in your vehicle, GET OUT and lie in a ditch. Cover your head. If you are far enough away to drive safely away, go at right angles away from the tornado.

Visit www.weather.gov and www.ready.gov for more information. I also recommend http://texasstormchasers.com/2012/03/04/thunderstorms-101/ for basic information on storms.

Can i use this helmet for road biking as well?




Jesse


http://www.amazon.com/gp/product/B00169186Y/ref=s9_simh_gw_p200_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-2&pf_rd_r=1XZG8K1GQ73DD3FY4SR7&pf_rd_t=101&pf_rd_p=470938631&pf_rd_i=507846

I like this helmet a lot, but it says it's recommended for mountain biking. I'm new to biking, and I realize that the shape is different from other road bike helmets but can it still be used for road biking? Also, does anyone know if the visor is removable? Thanks! Your answers are greatly appreciated!



Answer
Its a nice looking helmet. Of course you can use it for road cycling. Why take the visor off? It'll keep the sun out of your eyes.




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Title Post: Why are tornadoes so violent?
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