How Can I Find My Elevation Above Sea Level

• #41

I can't quite tell from the ingather, are those wires at the gas station (or at least shut by)? That'southward pretty incredible to be able to choice out individual utility cables from 5km abroad.

They are about 300m closer to the photographic camera, only yous can also see power lines behind it at the meridian here: (8:22AM moving-picture show)

That red sign is also backside the gas staton, information technology's near three anxiety high

Last edited: Sep 28, 2016

• #49

Iii places that leap to my mind are...

The Wash (Gibralter Signal to Hunstanton head)

The Solway Firth (Silloth to Southerness)

Morecambe Bay (Rampside to Morecambe)

All 3 are areas of level mud flats that with calm waters with predictable tides and all are between 9 - 12 miles across

• #51

The Wallace experiment really needs some solid basis in the middle - to avoid boat problems. A mud flat with the tide out might be interesting though.

Also 9 miles is far too much for this type of experiment. We'd be measuring the "bulge" betwixt two points, and at ix miles that'southward 13.5 feet.

Wallace did information technology at six miles (with a center target at iii), giving a target difference of six feet.

I think actually information technology might be possible to use a bridge as narrow as four miles, which gives an offset of 2.5 feet, probably non much less than that though.

Plenty of buoyage in The Wash. It should be possible to find out the dimensions. https://www.trinityhouse.co.united kingdom of great britain and northern ireland/mariners-information/navigation-buoys/cardinal-marks

Concluding edited: Sep thirty, 2016

• #60

I'm toying with doing a serial of experiments that are tailored to be compelling to the FE customs. One of the things I want to practise is simplify the ubiquitous 'does the horizon hide the correct heights of buildings' experiment.

Typically this experiment is washed with compages viewed from fairly long distance. I wanted to try to set up something on a much smaller calibration. Using measuring sticks that I plant into the ground at 3, 3.5, 4, iv.5 and five miles. I also wanted to avoid viewing over water. Past viewing over short distances and doing it over dry land, I can eliminate two major contributors to refraction. It will also allow me to get temperature and air pressure readings all along the line of sight so that I tin at least know what AR is there.

The thing that seems a trivial tricky is finding a suitable spot. Hither'south my question:

I alive in Los Angeles and the beaches here are piece of cake to admission and fairly straight and open. I don't think it would be hard at all for me to observe a 5 mile stretch right forth the water's edge. What I am wondering is: if I draw an imaginary line right at the tide-line forth the beach for five miles. Are all the points on that line guaranteed to exist at, with some minor error rate, the same elevation?

I retrieve they are. And then I call up that means I can count on that line following the general curve of the world.

Does that sound right?

Last edited by a moderator: May 18, 2017

• #69

I got a good 1:

Snowmass Mountain in Colorado is 14,099 feet high. Virtually 82.5 miles to the northeast is the fourteen,200 feet high Mountain Evans. And straight in line between the two, about 55.five miles from Snowmass is thirteen,800 feet high Crystal Superlative.

If the earth is flat, Mount Evans will be visible beyond Crystal Peak. If it's non, we won't run across Mount Evans at all.

Not strictly Wallace - merely a like main.

They probably assumed the world was a spheroid when they measured the heights of mountains so it is rather a spherical argument.

• #71

That, of grade, is the out - that the elevations aren't what they say they are.

Though getting all the elevations in a mountain range to tally upward to a flat earth would exist a pretty impressive feat.

Anyway...

Just had an idea nearly where to repeat the Wallace experiment: how about at Bedford Levels?

I've merely arrived back in England and since I'm a free amanuensis I'd be very up for going there and doing it. We could design the experiment together. Possibly go some prominent flat earthers along likewise.

Initial sketch: a pole or 2x4 about halfway along, painted in stripes maybe 10cm thick (and perhaps in unlike colours) topping out at least 6 anxiety above the water (and peradventure with something on superlative, like a ball); a large target - big bed canvass stretched over a wooden frame, for instance - similarly marked to place measurements; and possibly a platform across the culvert at the viewing cease, where diverse stable camera heights could be achieved.

That's just off the peak of my head; something like that. Perhaps fifty-fifty with identical poles a quarter and three-quarters of the way at that place.

Questions:

1. How powerful will the photographic camera take to exist? Volition a P900 practice it over that altitude?
ii. Who's interested in coming along?
3. What impact might the addition of the railway bridge take?
four. Is there perhaps a better canal, with (3) in listen? (Next longest directly stretch I can find is iii.5 miles, in the River Ancholme, west of Brigg.)

Cheers.

Terminal edited: May 29, 2017

• #74

The adjacent time I'thousand in Antarctica I could peradventure gear up the a Bedford level-type experiment on body of water ice. The body of water water ice in McMurdo sounds typically extends for over 30km from shore and a close to uniform thickness and conforming to the surface of the sea. If some targets were assail the hard ice surface (areas without snowfall on top, as this might displace the level of the ice) they should all be the aforementioned height above the sea surface.

At that place is frequently a pretty strong refraction (Fata Morgana) observed over the body of water ice, so I'g not sure how far apart the targets would need to be nor how high above the ice surface they would accept to be to get a true issue. I approximate it could exist washed several times with temperatures recorded to increment accurateness.

Of class I've already seen the shore and lower part of Ross Island disappear as I've driven away from shore, just I've never thought to certificate information technology, it should exist an interesting experiment. Whatever suggestions for the distances or target heights would exist appreciated.

• #76

You'd think simply existence in Antarctica would be plenty

Ha! Yeah I know, the 24 60 minutes sunlight for 3 months kinda kills any type of flat earth, but it would withal exist a fun experiment to endeavor.

• #78

How would you lot prove that the ice was level? Or, indeed, that the places you prepare the targets were level with one another?

Flat earthers believe "h2o finds its own level" - not certain that necessarily follows for ice.

That'due south actually a adept question Rory. Sea water ice is floating on the sea, it always has ten% of it'due south thickness above the surface of the sea. A part of my job down there is regular measurements of the ice thickness. It'southward generally a adequately uniform thickness early on in the flavour and doesn't actually change across large distances until it starts to intermission up in belatedly summertime. Finer the surface of the sea ice (without snow cover) is parallel to the sea surface, so information technology works well every bit a level (non flat) surface for looking at curvature over the earth.

• #79

That's actually a good question Rory. Body of water ice is floating on the sea, it always has ten% of information technology's thickness to a higher place the surface of the body of water. A role of my job down at that place is regular measurements of the water ice thickness. Information technology's generally a fairly compatible thickness early in the flavor and doesn't really change beyond large distances until it starts to break up in late summer. Effectively the surface of the sea ice (without snow cover) is parallel to the body of water surface, so it works well every bit a level (not apartment) surface for looking at curvature over the earth.

The main problem I can see is that because you work for 'them' (the NWO / large scientific discipline / NASA / insert nefarious organisation here) and many FE types hold firm to the notion that 'they' don't let 'normal people' there (complete cattle droppings of grade) any results you come up with will be dismissed as false and concocted to maintain the 'lie'.

Although having said that I think its a spiffing notion and an interesting experiment to comport out.

mcleoddespassoling1956.blogspot.com

Source: https://www.metabunk.org/threads/where-and-how-could-the-wallace-experiment-easily-be-repeated.7920/page-2

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