Any Knowledge of Mathematics and Physics (Aerodynamics) ?

Has anyone here in this Gardening Forum any Knoledge of Mathematics and Physics (possibly Aerodynamics) ?
It is a weird Query. It certainly is.
You would ask me: "which relations/involvements have Maths and Physics with Gardening ???"
They have ones...
IN MY OWN CASE, they have ones... ;-)
I will explain that later.

If someone could reply, THANKS !
If none could, THANKS THE SAME !

 

I don't but... my wife is a Mathelete, with a degree in Chem Eng
I always remember telling me about some equation that described
just about everything in aerodynamic :O

G

 

I am intrigued, and can make a fantastic paper aeroplane .

Dave

 

Maksim, does this have anything to do with the aerodynamics of Maple/Sycamore seed spreading?:D

 

Maths and physics play a vital role in everything, including gardening.

Tell us your query Maksim, I think we're all intrigued

 

Got an O level in Physics & Maths & a bad tendency to explode.

 

In a windy day, a big Sun-umbrella can get lifted as an airplane's wing.
Cannot it ?
I wonder if some gusts at, say, 30 - 40 knots could lift my 20kg Sun-umbrella.
Question: "what does that matter with Gardening ???"
Reply: "I placed my wide Sun-umbrella in the middle of my lawn"
Question: "Whatever for ???"
Reply: "to create as much a wide shadow as possible on my lawn"
Question: "Whatever for ???"
Reply: "For an healthy lawn, it works. On my opinion, lawn gardening is not only just a matter of watering but also a matter of right balance of SHADOW / SUNSTROKE.
Times ago, I asked why in England the gardens are so green.
I have come to a conclusion that, among other things, in Britain they have a higher amount of shadow than in Italy since Britain is more north than Italy"
Question: "So what's the problem with your Sun-umbrella ???"
Reply: "I and my wife are often not at home. But we leave the Sun-Umbrella open. Expecially in this season, storms accompanied with gusts and strongs winds are quite frequent here in Italy.
Weather can change quickly and "switch" from a sunny day to a stormy day in less than one hour.
I wonder if a gust stronger than the others could manage to slam the ombrella, say, in the middle of the road. In that case, I would be concerned for things and people in the road."

To start with, the question is: "how to calculate/estimate how strong should a gust be in order to lift the umbrella from the ground ?"
I know:
the umbrella's weight, the umbrella's size, and other things (data).

My curiosity was if it would be possible to make approximate calculations /estimations /assessments just to exclude the danger.
I say it again: it is just a curiosity.


That's all there is to it.

 

Maksim, my husband has just suggested, calculations aside, that you tie what we call guy ropes (which we use for holding tents to the ground) to the umbrella and tie the ropes to pegs that you can push into the ground.

 

Up here in the breezy north east, I've seen sand bags tied securely to the bottom of the pole that the parasol is on. Its quite discrete, being under the table, and is effective.

As to why our gardens are greener, its the same reason why our little island has been invaded and colonised so many times over the centuries. We have the perfect climate. We don'y get extremes of heat, baking the ground solid for months on end. We don't get extremes of cold (usually). We get regular rainfall. Nothing about our weather is extreme, just steadily mild all year long. Even our occassional 'storms' are nothing compared to what is the norm in some countries. It makes the news if the wind gets strong enough to knock someone's fence down or dislodge a couple of roof tiles, whereas in some parts of the world it is only newsworthy if someone's entire house gets obliterated.

All of this means that Britain is a good place to grow stuff (unless you want to grow stuff meant for a different climate of course), and is an easy place to live.

 

Just imagine that parasol as a big kite. Whilst camping last year in North Wales our 'sun' parasol that we were using as an umbrella to keep the rain off blew into the river and I had to wade in and retrieve it.

 

(You are funny).