Squares

General FreeBASIC programming questions.
albert
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Re: Squares

Postby albert » Jun 14, 2019 0:40

In the ocean , they sometimes get , what they call, rouge waves.

The rogue waves might be as high as 120 feet high.

If you take a bowl of water and keep pushing it down in the middle , the waves will keep getting bigger..
Rouge waves are caused by pulsing wind shear.. Winds pushing down from the clouds , on the water..
albert
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Re: Squares

Postby albert » Jun 14, 2019 1:00

That bowl of water , is a perfect example , like the playground swing scenario.

You fill a sink , 1/2 full of water. then put your hand in it , and keep moving your hand up and down..
When you get in time with the waves , the waves will keep getting bigger and bigger. Till they go over the rim of the sink.

That's how "Tesla's Earth Quake Machine" works....

You keep pushing the waves , and each push , they get bigger..


But with the sink of water.. you only need to push , like once or twice a second..
( That's why i was thinking the waves travel at the speed of gravity or slower.)
If you take a 2 foot diameter bowl of water and drop a pebble into the center,
The wave would reach the outside of the bowl in like a 1/2 second or so.. I don't think its 23 meters a second..
albert
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Re: Squares

Postby albert » Jun 14, 2019 1:52

@Richard

Can you make heads or tails of these formulas???

http://hyperphysics.phy-astr.gsu.edu/hb ... av.html#c3

It's on the sped of waves in water..

Maybe after reading it , you can figure the speed of waves in water?
Richard
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Re: Squares

Postby Richard » Jun 14, 2019 1:57

When investigating crime, follow the money.
When investigating physics, follow the energy.

When you push a swing or a pendulum you put potential energy into the system. As it swings, energy is lost to the air and so the height becomes progressively less. The frequency is too low for your ears to hear, but your eyes can clearly see the pendulum as it swings.

When you pluck a guitar string, you put energy into the string tension. As the string vibrates, energy is lost from the string into the air as sound waves, so the string vibration becomes progressively less. You can hear the sound, but your eyes cannot see the actual string, it is just a blur.

It is not gravity, but the radiation of sound energy that dampens a vibrating string.
albert
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Re: Squares

Postby albert » Jun 14, 2019 2:24

@Richard

With Tesla's "Earth Quake Machine" you don't have to worry about damping.
You just keep pushing the wave as it returns , and the wave keeps getting bigger.

Just like the sink of water.
Richard
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Re: Squares

Postby Richard » Jun 14, 2019 2:35

Albert wrote:With Tesla's "Earth Quake Machine" you don't have to worry about damping.

True. So much energy is radiated in so many ways, that it cannot possibly work.
Myth Busted.
http://www.discovery.com/tv-shows/mythb ... e-machine/
albert
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Re: Squares

Postby albert » Jun 14, 2019 2:59

@Richard

It does work!!!!

Tesla ; had the whole city of Manhattan earth quaking...

The police thought it was him experimenting , and rushed to his lab and broke down the door..
He grabbed a sledge hammer , and destroyed the machine..

I wrote about it , to the TV show "Myth Busters" on the American cable channel "Discovery Channel"..
And they did the "Earth Quake Machine" with a speaker.
And they had the wine glass wobbling like it was made of rubber...

You can search the "Myth Busters" website...It should come up...

They had tried Tesla's machine , on a bridge , with a tamper , and couldn't get it working, I emailed them and told them how it worked and they redid the show with a speaker and wine glass,, and it worked..
albert
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Re: Squares

Postby albert » Jun 14, 2019 3:13

@Richard

https://www.google.com/search?client=ub ... 8&oe=utf-8

It should be in there somewhere , with the speaker and wine glass..
Richard
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Re: Squares

Postby Richard » Jun 14, 2019 3:24

Read my previous post and follow the link to the MB test of Tesla's EQM.
dodicat
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Location: Scotland

Re: Squares

Postby dodicat » Jun 14, 2019 8:59

Richard wrote:@Albert. You do not seem to be thinking clearly.
Have you changed or reviewed your medication lately?

@dodicat.
Sandy Kidd, as a Scottish inventor, would be more successful if he carried out his experiments on the shores of Loch Ness. Such a fabulous device must be seen to be believed; Alas, it has been extinct for more than 30 years now.
http://www.gyroscopes.org/forum/questions.asp?id=2860


Thanks Richard.
Interesting forum (The gyroscope forum).
Sandy Kidd has a neat response to all those disbelievers:

"Shed dwellers,
e.t.c.
e.t.c."

I suppose he has had thirty years of it.

I am no expert in psychology, but he seems inwardly confident about his devices.

Seems that discovery.com is not available here.
"We're sorry. This site is not available in your region"
jj2007
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Re: Squares

Postby jj2007 » Jun 14, 2019 10:44

albert wrote:Every time you cut the length in half the hardness doubles.
No, the hardness is a constant. Basics of engineering.
albert
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Re: Squares

Postby albert » Jun 14, 2019 15:47

@Richard

https://www.youtube.com/watch?v=BE827gwnnk4

They show the waves in the glass , waveform amplification , like i said...
The glass wobbles more than the speaker travels.
The speak travels like 1/16 and the glass wobbles like 3/16

If the glass didn't break ( made of rubber)it would wobble like 1 or 2 inches after a few seconds ..


@j2007

The hardness is the flexibility... How hard is it to push down... cut the span in half and the flexibility decreases.
a 1 foot guitar string is twice or more harder to push down ,than a 2 foot guitar string.
A 10 foot rebar sags under its own weight , a 1 foot length of rebar takes several hundred pounds to make it flex..
So: The 1 foot rebar is several hundred times harder than the 10 foot rebar. Even though they are the same ,material.



For a wine glass:
If the wine glass is 23 centimeters in circumference. ( waves in water travel at 2300 centimeters a second. )
The waves would traverse the wine glass 100 times a second , half that would be the required pulse rate 50Hz.
albert
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Re: Squares

Postby albert » Jun 14, 2019 18:33

Google search on pnuematic solenoids..

MAC High Frequency Pneumatic Solenoid Control Valve G1/8 , G1/4
www.pneumaticcontrol-valve.com/sale-184 ... tic-sole...

MAC High Frequency Pneumatic Solenoid Control Valve G1/8 , G1/4 ... Working Pressure. 0~0.8MPa. Max.Working Frequency. 100 cycle/Sec. 10 Cycle/Sec.


Tesla's earth quake machine worked at low frequencies.. like 1 to 100 hertz
jj2007
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Re: Squares

Postby jj2007 » Jun 14, 2019 21:06

albert wrote:The hardness is the flexibility...
No.
albert
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Re: Squares

Postby albert » Jun 14, 2019 21:47

From the internet. Googled "Seismic detectors"

Extech 407860 Heavy Duty Vibration Meter
$764.15 from 25+ stores
1 product review
The heavy duty vibration meter measures velocity, acceleration, and displacement in RMS or peak value mode, with max./min ...
Extech



You use a seismic detector (like above) , and then tap the building with a sledge hammer and wait for the wave to return.
The return time is the required pulse rate.

@jj2007
The speed of waves in water , is 23 meters a second.
Divide 23 meters ps by the meter diameter , of the object you want to earth quake..
And then multiply by the flexibility ( how hard is it to push down , compared to water )
That tells you the required pulse rate.

If you know the resonant freq. then you can find the flexibility (hardness) like i did a few posts ago with the guitar "A" string.. 11.662 hardness.


If you want to earth quake a 23 meter building.. you wouldn't use 23 meters , because the building is not a solid.
You would take 1 wall or maybe all 4 walls and combine them into a span.. and then earth quake that span...

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