Debunked: The Equator Drain Trick (direction of water flow)

tadaaa

Senior Member
On our honeymoon my wife and I went to Kenya "on safari"

this often meant long drives between game reserves

on one such drive we came across a gaggle of Kenyans and Tourists huddling around a painted line in the road

the line signified the Equator - the northern hemisphere on one side the southern on the other

quite awe-inspiring if you accepted it as true

anyway a young enterprising Kenyan was proving it (for a small consideration, business is business after all)

he had a bucket full of water with a hole in the bottom and a matchstick floating on the surface

in essence he showed, as the bucket drained the matchstick rotated (on the surface of the rotating water) one way then the other depending on whether he had walked (10mtrs) either side of the line

the coup de grâce was when he placed the bucket directly over the equator and the matchstick stayed still as the water drained out - no swirl/rotation at all

was this a clever trick?, or would the physics of rotation show up over such small variation in position

I had no reason to suspect a trick at the time and simply took it as face value

but is/was it bunk?

thoughts?
 

Gridlock

Senior Member.
Something like this?

http://blogs.discovermagazine.com/badastronomy/2012/03/27/flushing-out-an-equatorial-fraud/

 

Spectrar Ghost

Senior Member.
Position isn't the deciding factor, though it makes it even more unlikely. Time is. The Coriolis Force only shows up over extended periods of time. Under about three hours it is fairly negligible. The direction of drain vortices is determined by initial rotation instead of Coriolis forces.

It's a good trick, but it's probably sleight of hand, imparting opposite rotations to the water while moving or pouring it.

Ah! Beat to it!
 

tadaaa

Senior Member
ahah, excellent, thanks everyone

so I have been the victim of "bunk", -- I would recount this story (it was in 1996) to people down the years,

Although I haven't for a few years partly coz I suspected it was a trick - I must have been less sceptical then

but if it allows a enterprising lad to make a few bucks of passing tourists then fair doos

although I would like to think the line in the road was the actual equator and not, well

a line painted in the road!!!!!
 

Trailblazer

Moderator
Staff member
Unfortunately the line they do these tricks on is old, and not quite on the exact equator:

"The exact equator" is not as easy as that. It's more a matter of definition. GPS receivers give the co-ordinates based on an mathematical model of the Earth, which is only an approximation. And there are several possible "geodetic datums" that you can use, all of which will have the zero-degree line in a slightly different place.

(For the same reason, a GPS receiver placed directly on the Greenwich meridian line in London does not read zero: most GPS receivers use the WGS84 datum, and the WGS84 0º longitude line is about 100 metres from the "official" Greenwich meridian defined by the telescope at the obervatory.)



And then there is the fact that the equator is not fixed. The earth's axis of rotation wobbles slightly, which means that the equator also moves by a few metres over the course of a year. So, it's clear that just moving a metre or two either side of the line would not show an effect, because depending on when you carried out the experiment, the equator might not be on the line any more!

(When I visited Kenya, I was told by those in the know that the effect was created by the person turning in the appropriate direction while holding the basin of water before putting it down, to impart a rotation in the water.)
 
Last edited:

tadaaa

Senior Member
so is the often repeated tale of water draining from a bathtub in the southern hemisphere, in say in Cape Town, rotating in a the opposite direction bathtub in the UK
 

Pepijn van Erp

New Member
The last video is extra funny when you realize that he has mixed up the directions in which the water is supposed to swirl due to the Coriolis effect.
 
Thread starter Related Articles Forum Replies Date
Oystein Debunked: Gibraltar cancels Christmas Coronavirus COVID-19 5
Mythic Suns [Debunked] Viral internet meme indirectly claiming that Greenland has already fully melted. Science and Pseudoscience 6
T AiG Debunked: Fossils Fail to Find Major Transition From Dinosaurs to Birds Science and Pseudoscience 10
Rory Debunked: UK undertaker's claim that Covid vaccine is responsible for spike in deaths Coronavirus COVID-19 7
Marc Powell Debunked: 9/11 truth experts are knowledgeable professionals and their judgments are to be trusted 9/11 195
Marc Powell Debunked: Explosions preparatory to demolition of the WTC North Tower are visible as Flight 175 crashes into the South Tower 9/11 7
Mick West Debunked: Pfizer Developing a Twice-Per-Day COVID Pill, Taken Alongside Vaccines Coronavirus COVID-19 0
Marc Powell Debunked: Demolition “squib” is visible at top of WTC North Tower before Flight 11 crash 9/11 67
Marc Powell Debunked: Construction worker Philip Morelli experienced an explosion in the sub-basement of the North Tower 9/11 0
Marc Powell Debunked: ABC News correspondent George Stephanopoulos reported an explosion in the subway 9/11 1
Marc Powell Debunked: Debris from twin towers was projected upward by explosives 9/11 13
Marc Powell Debunked: Government officials revealed having foreknowledge of Building 7’s collapse 9/11 58
Marc Powell Debunked: NIST computer simulation of Building 7 collapse is inaccurate 9/11 22
Marc Powell Debunked: FEMA reported finding evidence that steel had melted. 9/11 47
Marc Powell Debunked: VP Dick Cheney ordered a standdown of jet fighters on 9/11 9/11 16
Oystein Debunked: Claim that Bobby McIlvaine's injuries ("lacerations") are best explained as result of glass shards and debris from bombs 9/11 22
Marc Powell Debunked: World Trade Center should not have collapsed due to 9/11 fires 9/11 3
Marc Powell Debunked: Firefighter reports of secondary explosions 9/11 3
Marc Powell Debunked: Steel was hurled hundreds of feet by explosives 9/11 4
Marc Powell Debunked: Demolition Explosion Before Collapse of South Tower 9/11 8
Marc Powell Debunked: Explosion in South Tower Lobby 9/11 7
Marc Powell Debunked: Mysterious Explosion Before the Flight 11 Crash 9/11 48
J.d.K Debunked: Marx: "The classes and the races too weak to master the new conditions must give way... They must perish in the revolutionary Holocaust" Quotes Debunked 0
dimebag2 Poll : Which DOD Navy video do you consider debunked ? UFO Videos and Reports from the US Navy 74
Mick West Debunked: Diving Triangle UFO Photos from Reddit [Fake] UFOs and Aliens 37
Theferäl [Debunked] Object Seen From Airplane Above Canberra: 04 Apr 2012 Skydentify - What is that Thing in the Sky? 5
TEEJ Debunked: Claim that Joe Biden's hand passes through microphone during White House press gaggle, 16th March 2021 Election 2020 9
bird_up Debunked: "Interdimensional being" caught on CCTV in Neza, Mexico Ghosts, Monsters, and the Paranormal 6
M Debunked: Atmospheric pressure on Mars is 9 PSI, not 0.09 PSI as claimed by NASA Science and Pseudoscience 76
Patrick Gonzalez Debunked: missing cable on Perseverance landing footage proves it is fake. General Discussion 3
TEEJ Debunked: Biden's Oval Office "Coming Apart at the Seams" [It's a Door] Election 2020 19
derrick06 Debunked: UFO over California Highway (TMZ) UFOs and Aliens 1
P Debunked: 7 Alleged photos of aliens UFOs and Aliens 9
Mick West Debunked: Biden signing "Blank" Executive Orders Election 2020 5
Mick West Debunked: Biden in "Fake" Oval Office Election 2020 27
P Debunked: UN hidden camera: the first UFO contact happened [Deep Fake] UFOs and Aliens 3
Mick West Debunked: 94% of Fulton County Ballots Manually Adjudicated [It's a Process all Batches go Through] Election 2020 0
Mick West Debunked: "Missile Strike" caused Nashville Explosion General Discussion 3
Mick West Debunked: Nashville Explosion was "Across the Street" from the RV General Discussion 0
Mick West Debunked: "Error rate of 68.5% Allowable is .0008%" [Neither is True] Election 2020 4
Mick West Debunked: Claim that the Electoral College Count On Jan 6 will Change the Election Election 2020 136
Rory Debunked: Einstein wrote "blind belief in authority is the greatest enemy of truth" Quotes Debunked 12
Mick West Debunked: Navid Keshavarz-Nia's Claims of "A Sudden Rise in Slope" as Election Fraud Evidence Election 2020 5
Mick West Debunked: Trump's Claim of "1,126,940 votes created out of thin air" in PA Election 2020 9
Mick West Debunked: Crowder's "Fraud Week" Title Graphic (and Why it Matters) Election 2020 1
JFDee Debunked: Democratic senators complained about 'vote switching' by Dominion voting machines in 2019 Election 2020 2
Mendel Debunked: The Democrats are trying to take away freedom of religion Election 2020 6
H Debunked: Dr. Shiva's Scatterplot Analysis of Michigan Precincts Election 2020 43
Mick West Debunked: Suspicious "Biden Only" Ballots in Georgia Election 2020 3
Mick West Debunked: "Nancy Pelosi's long time Chief of Staff is a key executive at Dominion Voting" Election 2020 0
Related Articles


















































Related Articles

Top