Tags
Tab Item Content
Join Us!
Archives Meta
Archaeology by Prau...
 
Notifications
Clear all

Archaeology [Sticky] Archaeology by Prau123

2,865 Posts
12 Users
0 Reactions
6.7 M Views
Prau123 avatar
Posts: 4360
Topic starter
(@prau123)
Famed Member
Joined: 8 years ago

 

How Wooden Armour Held Off Russian Muskets in Alaska

 

 

 

 

 

 

 

 

 

A Russian captain who fought the Tlingit in 1804 wrote that a musket ball fired at moderate range could hardly get through their helmets. The helmets were carved from spruce burl, the gnarled, knotted wood that does not split when it is hit. Under the helmet a bent-wood collar covered the face, with a slit to see through and a spruce-root loop inside that the warrior gripped in his teeth. On the body went wooden slats over two layers of thick hide. 📖 Source: Elizabeth von Aderkas, American Indians of the Pacific Northwest, Osprey Men-at-Arms 418 This kit was made for clan wars fought with arrows, clubs and daggers. When the Russians came hunting sea otters, hide alone did not stop their musket balls, and some warriors are said to have sewn hundreds of Chinese coins onto it, coins that came back from China in the otter trade. The Spanish artist Tomás de Suria tried a helmet on in 1791 and wrote that it weighed as much as if it were iron. In June 1802 the Tlingit took the Russian fort at Sitka and burned it. In 1804 the Russians returned with the warship Neva, and for four days its guns could not break the new fort of green saplings. What ran out was gunpowder, after a canoe carrying the reserve blew up. Their war leader K'alyaan fought in a carved raven helmet with a blacksmith's hammer taken from the Russian fort, and that helmet still survives. This channel is made on musayko.com, a platform I built for creating and managing content, and it is open to other creators too. Which warrior should we reconstruct next?

 

 

 

 

 

 

 

 

 

 

 

https://www.youtube.com/shorts/vYl_aDfdWvk?feature=share

 

 


Reply
Prau123 avatar
Posts: 4360
Topic starter
(@prau123)
Famed Member
Joined: 8 years ago

 

Is ice really considered a mineral? (Excerpt) 🧊❄️🤔

 

 

 

 

 

 

 

 

 

In this episode of IS, we take a closer look at something so familiar that it barely feels geological at all.

Natural ice has a definite chemical composition, an ordered crystal structure and proper mineralogical properties, which means it qualifies as a mineral. We also look at ice Ih, the hexagonal form found under normal surface conditions, why snowflakes develop six-fold symmetry, and why the ice making up glaciers is made from countless individual crystal grains.

That leads to an even stranger conclusion: glacier ice can also be considered a rock.

We also explore how glacier ice forms, how its crystals deform and recrystallise, and why something that looks completely solid can slowly flow and reshape entire landscapes.

 

 

 

 

 

 

 

 

 

 

 

https://www.youtube.com/shorts/T9XlFLJW98E?feature=share

 

 


Reply
Prau123 avatar
Posts: 4360
Topic starter
(@prau123)
Famed Member
Joined: 8 years ago

 

This 1-mile Arizona hole is not a volcano. It came from space.

 

 

 

 

 

 

 

 

 

How did Meteor Crater in Arizona form, and why is it a round bowl instead of a long gouge if the meteorite came in at an angle? About 50,000 years ago an iron meteorite hit at roughly 7.5 miles per second and released over 2 million tons of TNT's energy as a half-sphere shock wave that pushed out evenly, so only strikes under 10 degrees leave an oval. In 1960 Eugene Shoemaker and Edward Chao found coesite, a form of quartz that only extreme shock can make and no volcano can, and that ended the steam-blast theory. Some details are visually simplified to aid understanding.

 

 

 

 

 

 

 

 

 

 

image

 

Coesite

 

 

 

 

 

 

https://www.youtube.com/shorts/ucCPbtVqw_Q?feature=share

 

 


Reply
Prau123 avatar
Posts: 4360
Topic starter
(@prau123)
Famed Member
Joined: 8 years ago

 

Chesapeake Bay is not just a bay. It hides a 53-mile asteroid crater.

 

 

 

 

 

 

 

 

 

Why do the James and York Rivers bend at the same spots, and why do deep wells near the lower Chesapeake Bay hit salt water? About 35 million years ago, an impact blasted a hole roughly 4,300 feet deep near Cape Charles, Virginia, and the returning ocean filled it with rubble now buried up to 1,600 feet underground. That soggy fill keeps compacting so the ground sags, steers rivers along the 53-mile rim, and holds trapped brine 1.5 times saltier than seawater. Some details are visually simplified to aid understanding.

 

 

 

 

 

 

 

 

 

 

 

 

 

image

 

 

 

 

 

 

 

 

 

https://www.youtube.com/shorts/Ei7LKMMLa9E?feature=share

 

 


Reply
Prau123 avatar
Posts: 4360
Topic starter
(@prau123)
Famed Member
Joined: 8 years ago

 

Mammoth Cave is not one cave. It is 426 miles of tunnels.

 

 

 

 

 

 

 

 

How long is Mammoth Cave, and why doesn't the ground above it collapse? Rainwater turns into a weak acid, pours into sinkholes and dissolves three layers of limestone on its way to the Green River, while a 320-million-year-old sandstone roof protects the ridges above. Each time the river cut down, a new level of passages formed, and in 1972 the Flint Ridge and Mammoth Cave systems were linked into one cave now mapped past 426 miles. Some details are visually simplified to aid understanding.

 

 

 

 

 

 

 

 

 

 

 

https://www.youtube.com/shorts/tdSHvlt92GE?feature=share

 

 


Reply
Page 555 / 559
Share: