Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Researchers suggest Vikings used crystals with sun compass to steer at night
Phys dot org ^ | March 26, 2014 | Bob Yirka

Posted on 03/29/2014 9:14:22 AM PDT by SunkenCiv

A team of researchers working in Hungary has proposed that a sun compass artifact found in a convent in 1948 might have been used in conjunction with crystals to allow Vikings to guide their boats even at night. In their paper published in Proceedings of the Royal Society A: Mathematical, Physical & Engineering Sciences, the team describes theories they've developed that might explain how Viking sailors were able to so accurately sail to places such as Greenland.

Since the discovery of the sun compass fragment, researchers have theorized that Viking sailors used them to plot their course—at least when the sun was shining. They didn't have magnetic compasses, however, which suggest they must have had some other means for steering in the evening or the later hours. In this latest effort, the researchers describe a scenario where the Vikings might have used a type of crystal that they called a sunstone to help them use light from the sun below the horizon as a guide.

The sun compass fragment, prior research has suggested, operated in similar fashion to a sundial, using the position of the sun to determine direction, instead of time. Some have suggested the Vikings also used a dome shaped object with slits in it, placed on top of the compass to help narrow the light during the time when the sun moved low towards the horizon.

(Excerpt) Read more at phys.org ...


TOPICS: History; Science; Travel
KEYWORDS: ancientnavigation; calcite; compass; cordierite; crystal; godsgravesglyphs; greenland; hungary; iceland; middleages; navigation; renaissance; sunstone; sunstones; thevikings; turmaline; viking; vikings; vinland
Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-62 next last
To: logi_cal869

This^


21 posted on 03/29/2014 10:52:01 AM PDT by Salamander (SNEK!!!)
[ Post Reply | Private Reply | To 5 | View Replies]

To: The Cajun

But what if it was cloudy??

LOL


22 posted on 03/29/2014 10:53:49 AM PDT by Salamander (SNEK!!!)
[ Post Reply | Private Reply | To 17 | View Replies]

To: Bernard Marx

Thanks!


23 posted on 03/29/2014 11:00:47 AM PDT by SunkenCiv (http://www.freerepublic.com/tag/alreadyposted/index)
[ Post Reply | Private Reply | To 18 | View Replies]

To: The Cajun

Or maybe Snojet.


24 posted on 03/29/2014 11:01:02 AM PDT by SunkenCiv (http://www.freerepublic.com/tag/alreadyposted/index)
[ Post Reply | Private Reply | To 17 | View Replies]

To: Cincinnatus.45-70; Monkey Face

It’s interesting that the Phaistos Disk, which was excavated on Crete, was found to have been inscribed using dies, iow, movable type. No other examples of the disk have been found AFAIK, but time will tell. Sometime in the last 15 or so years one scholar claimed that the Phaistos Disk was a modern forgery, I wonder if the claim grew out of the use of dies.


25 posted on 03/29/2014 11:02:07 AM PDT by SunkenCiv (http://www.freerepublic.com/tag/alreadyposted/index)
[ Post Reply | Private Reply | To 15 | View Replies]

To: zot

navigation ping


26 posted on 03/29/2014 11:08:18 AM PDT by GreyFriar ( Spearhead - 3rd Armored Division 75-78 & 83-87)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Probably grew out of the desire to diss the maker(s) of the Disk, and make himself seem smarter. I, for one, do not discount or disrespect ANYthing found that indicates intelligence and innovation.

There are many possibilities for this “newfound data,” not the least of which is “alien intelligence.” We don’t know that there is no such thing, and we can’t discount a Higher Power aka Angels, who guide our thinking in ways that will help us.

So when I hear of someone who “pooh-pooh’s” the items found, I have to laugh at their ignorance and closed minds. Anything is possible.


27 posted on 03/29/2014 11:12:43 AM PDT by Monkey Face (I don't know when the UFO dumped off all these stupid people, but I guess they're not coming back.)
[ Post Reply | Private Reply | To 25 | View Replies]

To: Monkey Face
Most ( of the public's opinion of scientists, molded by the media ) of the scientists today seem to cling to popular myths, and don’t bother trying to find out the truth of the past, and what mankind has been capable of for millenia.
28 posted on 03/29/2014 11:25:28 AM PDT by UCANSEE2 (Lost my tagline on Flight MH370. Sorry for the inconvenience.)
[ Post Reply | Private Reply | To 16 | View Replies]

To: SunkenCiv

Loki built one of these for Ragnar Lodbrok in season 1.


29 posted on 03/29/2014 11:35:54 AM PDT by E. Pluribus Unum ("The man who damns money has obtained it dishonorably; the man who respects it has earned it.")
[ Post Reply | Private Reply | To 1 | View Replies]

To: Monkey Face

All you have to do is read the personal letters of people from a few hundred years ago to realize how much more literate and intelligent they were than the average iPhone user of today.


30 posted on 03/29/2014 11:38:03 AM PDT by E. Pluribus Unum ("The man who damns money has obtained it dishonorably; the man who respects it has earned it.")
[ Post Reply | Private Reply | To 16 | View Replies]

To: E. Pluribus Unum

No lie. Bigger words, more complex sentences, and much better defined sense of the fitness of things, personal, spiritual and communal.


31 posted on 03/29/2014 11:39:24 AM PDT by Monkey Face (I don't know when the UFO dumped off all these stupid people, but I guess they're not coming back.)
[ Post Reply | Private Reply | To 30 | View Replies]

To: SunkenCiv

A small population from Scndinavia was vey successful for a few hundred years.

They invaded then merged in the British Isles. They conquered then merged into northern France. William the Conqueror who in 1066 took over England was a Viking descendant.

http://en.wikipedia.org/wiki/Anglo-Saxon_England#England_under_the_Danes_and_the_Norman_conquest_.28978.E2.80.931066.29

They went far into Russia and Asia, started the Kievan Rus culture, which is the basis for Russia that followed.

http://en.wikipedia.org/wiki/Kievan_Rus%27

They sailed into the Mediterranean, and made an empire from southern Italy to Turkey.

http://en.wikipedia.org/wiki/Norman_conquest_of_southern_Italy

They sailed to north America. You all know that story.

Few cultures can boast the influence achieved by such a small population. Today the Scandinavian countries’ population is less than 20 million. At home in the face of a hostile climate, they prosper as few others do.


32 posted on 03/29/2014 11:58:04 AM PDT by truth_seeker
[ Post Reply | Private Reply | To 1 | View Replies]

To: deweyfrank

I had high hopes for that series. They really let me down.


33 posted on 03/29/2014 12:11:57 PM PDT by Bigg Red (1 Pt 1: As he who called you is holy, be holy yourselves in every aspect of your conduct.)
[ Post Reply | Private Reply | To 11 | View Replies]

To: SunkenCiv

Chinese and Greeks used lodestones for navigation 3,000 years ago- these guys are morons-,

Magnesia in Greece was famous for lodestones=

Homer`s “The Iliad”, describes the 12 points of the magnetic compass as 12 ancient greek cities that are located on the 12 points-

duhh gimme a break
bunchA MORONS\”schulars”


34 posted on 03/29/2014 12:13:09 PM PDT by bunkerhill7 ("The Second Amendment has no limits on firepower"-NY State Senator Kathleen A. Marchione.")
[ Post Reply | Private Reply | To 1 | View Replies]

To: NVDave

Sums it up better than I ever could. Well said.


35 posted on 03/29/2014 12:22:30 PM PDT by SueRae (It isn't over. In God We Trust.)
[ Post Reply | Private Reply | To 9 | View Replies]

To: SunkenCiv

Archaeologists and anthropogists do not own boats.

That is my conclusion after 60 years of watching non sailors commenting on people and cultures who sailed continuously.

Free clue: Sailors sail. All the time. Whenever possible. 3 days on the sea is not death defying high adventure but merely a fun sail.


36 posted on 03/29/2014 12:26:34 PM PDT by buffaloguy
[ Post Reply | Private Reply | To 1 | View Replies]

To: bunkerhill7

The attraction of the lodestone to iron was known in Greece in the 7th century BC. The Greeks didn’t use a compass, they judged the direction traveled by the winds.

The Chinese discovered that the Earth has a magnetic field about 2000 years ago, but noticed that it didn’t point to true north a few centuries later, probably as a consequence of widespread seagoing trade during the time when Roman Empire and Han China were at their peaks, a period that has been described as the happiest time the Earth has ever known. Of course, they didn’t have streaming vid back then.

The Han court records record a visit from a Roman trade expedition during the time of Marcus Aurelius. At another time the Chinese sent an ambassador toward Rome, by sea; unfortunately they wound up in the Persian Gulf and did some trading with the locals there instead.

The early European compasses consisted of a magnetic sliver stuck through a couple of small pieces of cork to make it float on water. After 1492 the deviation of magnetic north from true north was rediscovered.

http://www.gns.cri.nz/Home/Our-Science/Earth-Science/Earth-s-Magnetic-Field/Discovery-of-the-Earth-s-magnetic-field

http://www.magnet.fsu.edu/education/tutorials/timeline/600bc-1599.html

http://en.wikipedia.org/wiki/Classical_compass_winds#Homer

http://www.freerepublic.com/tag/antikytheramechanism/index


37 posted on 03/29/2014 12:37:25 PM PDT by SunkenCiv (http://www.freerepublic.com/tag/alreadyposted/index)
[ Post Reply | Private Reply | To 34 | View Replies]

To: Cincinnatus.45-70

What you say??!!! Fire isn’t just a weapon of mass destruction??!!


38 posted on 03/29/2014 12:42:25 PM PDT by Conservative4Ever (waiting for my Magic 8 ball to give me an answer)
[ Post Reply | Private Reply | To 15 | View Replies]

To: bunkerhill7

Just a reminder that lodestones, or any other magnetic device, is less effective in the polar regions.


39 posted on 03/29/2014 12:44:58 PM PDT by derSchurfer (When the Rule of Law is ignored good citizens will take the law into their own hands.)
[ Post Reply | Private Reply | To 34 | View Replies]

To: truth_seeker

The Scandinavians had a big population explosion as a consequence of the Medieval warming; Viking-era farmsteads are found (as ruins) both farther north and at higher altitudes than are viable today.

They controlled a long route based on rivers and portages, and worked for the Byzantine emperors as the Varangian Guard, becoming both wealthy and powerful. That went on for a couple centuries.

Hardrada was working for the Byzantine general tasked with pushing the Saracens out of Sicily; the Saracens broke up pottery behind them to prevent a cavalry charge, so Hardrada had his cavalry wrap the horse’s hooves with palm fronds cut from the nearby trees, and charged them anyway.

The later Norman kingdom in Sicily didn’t last long, only two generations.


40 posted on 03/29/2014 12:47:15 PM PDT by SunkenCiv (http://www.freerepublic.com/tag/alreadyposted/index)
[ Post Reply | Private Reply | To 32 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-62 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson