Hidden secrets of 1491 world map revealed via multispectral imaging

Phys.Org ^ | 06-12-2015 | Mike Cummings

[Billthedrill]

Very cool. Having done a little navigation myself I am simply astounded at that feat of seamanship - these guys had no means of determining longitude and they still managed to end up pretty much where they intended. Once might be accident, twice luck, but four times is just amazing.

[Red Badger]

They used a knotted rope to determine their speed at any given moment and so were able to roughly calculate distance gone.....................

[minnesota_bound]

A tidal wave or earthquake would make this island disappear again.

[bert]

In the recesses of a library basement in Hawaii, there is a filing cabinet with genealogical records indicating that the Great great great grandfather of Barack Obama on his mothers side was of the Panotiiae people Many believe the Panotii are the lost tribe later to surface in the Δ Quadrant as Ferengi

[Red Badger]

The Ferengi are pure capitalists..........................

[blam]

"A tidal wave or earthquake would make this island disappear again."

Nah.

The Bahamas’ African Roots

[sauropod]

.

[BitWielder1]

Didn't Columbus believe he was going to India?
If he was using this map, he would have known India was far from the first landmass he would reach.

[Red Badger]

He believed, or so it is said, that one could sail west to get to India rather than go around Africa, and it would be quicker. He grossly underestimated the diameter of the Earth...............

[BitWielder1]

Right, but even without the American continents in the way, according to this map the first land seen would not have been India.
Yet he thought he had reached India and he named the indigenous habitants "Indians".
That makes me wonder if Columbus was really using this map.

[LegendHasIt]

Heh, I was getting ready to ping you.... Glad I don’t have to!

;-)

[Red Badger]

He had the right latitude for India, but had no clue how big the Earth was. His intent was to find a quick way to get to India, so he did what Climatologists do today, he declared it to be India.......................

[SunkenCiv]

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[pepsi_junkie]

My compliments to your brother and his colleagues, this branch of science is immensely interesting. Lost works of antiquity are coming back into focus thanks to their work and that’s truly priceless.

[WakeUpAndVote]

...describes the "Panotii" people, who purportedly had ears that were so large they could use them as sleeping bags.

[colorado tanker]

Great post! I’m a Cartologophile too (if that’s a word)!

[Red Badger]

It must be, my spellchecker passed it!...................

[onedoug]

Very interesting. Thanks for posting.

[ZinGirl]

I, too, am astounded at the mad skill navigational abilities of man years ago.

I'm particularly impressed with Wm Bligh's awesome trek taking the small boat he was kicked onto after the mutiny of The Bounty.

from wiki: The mutineers provided Bligh and eighteen loyal crewmen with a 23-foot (7 m) launch (so heavily loaded that the gunwales were only a few inches above the water). They were allowed four cutlasses, food and water for perhaps a week, a quadrant and a compass, but no charts, or Marine chronometer. Most of these were obtained by the clerk, Mr. Samuel, who acted with great calm and resolution, despite threats from the mutineers.

The launch could not hold all the loyal crew members, so four were detained on the Bounty for their useful skills; they were later released in Tahiti.

Tahiti was upwind from Bligh's initial position, and was the obvious destination of the mutineers. Many of the loyalists claimed to have heard the mutineers cry "Huzzah for Otaheite!" as the Bounty pulled away.

Timor was the nearest European outpost, 3,618 miles away. Bligh and his crew first made for Tofua, only a few leagues distant, to obtain supplies. However, they were attacked by hostile natives and John Norton, a quartermaster, was killed.[4] Fleeing from Tofua, Bligh did not dare to stop at the next islands (the Fiji islands), as he had no weapons for defence and expected hostile receptions. He did, however, make use of a small notebook to sketch a rough map of his discoveries.

Thus, he undertook the seemingly impossible 3,618 nautical miles (6,701 km; 4,164 mi) voyage to Timor, the nearest European settlement. In this remarkable act of seamanship, Bligh succeeded in reaching Timor after a 47-day voyage, the only casualty being the crewman killed on Tofua.

[Elsiejay]

Does anyone here know the nature of the “bedrock” undergirding these structures?

S’il vous plait?