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Nairaland Forum / Science/Technology / Walking Or Running In The Rain? (1208 Views)
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Walking Or Running In The Rain? by RobinHez(m): 8:57pm On May 05, 2015 |
You are going home after spending some time in the library and suddenly it begins to rain. The closest shed from where you are is some good metres away. In this case you are left with two options; it is either you run to the shed or walk quickly to the place. The question now is, to avoid excess wetting of your clothes which would be more beneficial? Yes! I know common sense (which is not common to some people) would tell you that it is better to run than to walk. But what's the reason to that? Some scientists have tried to analyse this notion by carrying out experiments to know the best method of avoiding excess wetness. Some concluded that walking exposes less part of the body to the rain while running exposes (to a great deal) the anterior of your body thereby causing the individual to get wet excessively. Well this observation is true bearing in mind that there is an angle between the rainfall and the person involved (sometimes you feel the rain coming from the front, sometimes from the back and most times it just comes straight down. This is due to the action of wind). But walking in the rain makes you spend more time in the rain giving it more time to hit you. Running, however, is a faster mode of movement to walking. And Nick Allen, a British inventor was able to deduce a formula to explain this concept and I’ll try to break it down so that we can all understand. assuming W= total wetness i.e. the total mass of rainwater on your body. p= the density of rainwater a= top surface area of the body (that big head of yours...lol) A= front surface area of the body( the chest downward) V R= velocity of the rain V P= velocity of the person t= time spent in the rain. From these parameters he got; W=P(aV R + AVP )t Looking at the equation clearly, the only quantities we can directly control are ‘t’ (the time spent in the rain) and VP (how fast we can move). The equation shows to us that we get very wet if we stay out in the rain for a long time i.e if we are walking or running without a destination. Surely running towards shelter would minimize the time spent in the rain. And so, if the distance to the shelter is D, then the time spent in the rain (‘t’ in the equation) will be D/V P and if we insert this into the "total wetness equation" to replace t, we get W=P[aV R /VP+A]D So, we can see that maximizing our velocity is a good idea to stay less wet. Therefore the next time it starts to rain, first identify the nearest shelter, and the run to it as quickly as you can. source: http://edscienceblog..in/2014/06/walking-or-running-in-rain.html?m=1 2 Likes 1 Share
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Re: Walking Or Running In The Rain? by resocorp: 9:04pm On May 05, 2015 |
What was the conculsion from myth busters? |
Re: Walking Or Running In The Rain? by falcon01: 9:04pm On May 05, 2015 |
Re: Walking Or Running In The Rain? by Mprex(f): 9:09pm On May 05, 2015 |
op is mad |
Re: Walking Or Running In The Rain? by TheHood: 9:19pm On May 05, 2015 |
nice one |
Re: Walking Or Running In The Rain? by RobinHez(m): 9:20pm On May 05, 2015 |
Mprex:why? |
Re: Walking Or Running In The Rain? by RobinHez(m): 9:25pm On May 05, 2015 |
Mprex:why? |
Re: Walking Or Running In The Rain? by Princecalm(m): 9:49pm On May 05, 2015 |
Quickly give equations for that of sun also. |
Re: Walking Or Running In The Rain? by RobinHez(m): 9:52pm On May 05, 2015 |
Princecalm:looool...u knw wht to do na |
Re: Walking Or Running In The Rain? by Princecalm(m): 9:55pm On May 05, 2015 |
RobinHez:did we not know what to do under the rain before? |
Re: Walking Or Running In The Rain? by RobinHez(m): 9:59pm On May 05, 2015 |
Princecalm:well scientists dont believe in common sense, there has to be a proof and reason to everything! |
Re: Walking Or Running In The Rain? by Princecalm(m): 10:07pm On May 05, 2015 |
RobinHez:and that is why I have asked for that of sun to be proven. |
Re: Walking Or Running In The Rain? by Jamzig1(m): 5:56pm On May 06, 2015 |
Scientists!...Always find a proved reason for every action...Proudly Physicist 1 Like |
Re: Walking Or Running In The Rain? by Jelailah(f): 8:00am On May 08, 2015 |
JAMZIG! I WON'T SAY MORE THAN THAT |
Re: Walking Or Running In The Rain? by RobinHez(m): 8:07am On May 08, 2015 |
Jelailah: |
Re: Walking Or Running In The Rain? by Jamzig1(m): 6:41pm On May 08, 2015 |
Jelailah:Say your mind bae |
Re: Walking Or Running In The Rain? by Nobody: 11:04pm On May 08, 2015 |
Why overcomplicating things? It's common sense that in the rain, the only variable is time. So, why all the annoying equations! |
Re: Walking Or Running In The Rain? by RobinHez(m): 9:01am On May 09, 2015 |
Teempakguy:fixed! |
Re: Walking Or Running In The Rain? by RobinHez(m): 9:04am On May 09, 2015 |
For those who think this research is garbage....understand that this has been a long term issue that has been debated by great physicists. Appreciate what u have, while u still have it. |
Re: Walking Or Running In The Rain? by RobinHez(m): 9:06am On May 09, 2015 |
resocorp:they first concluded on walking but later, after considering the direction of rain, they fixed it on running 1 Like |
Re: Walking Or Running In The Rain? by Nobody: 4:19pm On May 09, 2015 |
RobinHez: The velocity of time is a dependent variable. The distance is always constant. So, you just stated the obvious. |
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