Historical Whatsits

humanoidhistory:

September 15, 1966 — After a three-day, 44-orbit journey into space, Gemini 11 astronauts Pete Conrad and Dick Gordon splash down in the Atlantic where Navy frogmen assist them out of the spacecraft, in to a boat, up to a helicopter, and then on to much, much bigger boat. (NASA


Up Close: Armour 1700-1799 (X)

Up Close: Armour 1700-1799 (X)

historicalfirearms:

Cleaning 16th Century Armour

The suit of armour above dates from the mid 1500s and is believed to originate from Germany.  Unlike the Italian suit of armour I helped to clean several months ago this suit has almost all matching pieces.  However, it is missing the greaves (shin guards) and the sabatons which protected the feet.  

The suit itself is made of low carbon content mild steel, the process of making a suit of armour was long and costly with only the best, lowest carbon steel being used.  The lower the carbon content the better the steel with 1 or 2% carbon content being best.   If you look closely at the photographs above you can see the leather strapping (not original) and the rivets inside the armour which hold the individual pieces together.  

In the second photograph you can see the metal tube stand on which the armour is usually hung.  The suit was cleaned with extremely fine wire wool and a micro-abrasive metal cleaner which removes any surface dirt, rust and corrosion.  Each piece is then buffed lifting the dirt from the surface.  We then add a layer of micro-crystalline conservation wax polish which is applied and then buffed the next day ready for the suit to be reassembled.

Part of the National Trust’s collection, author’s photographs.

nemfrog:

On the Temperature and Physical Condition of the Sun.  The Philosophical Magazine. November 1870.
"Forms and eruptions of cloud-like prominences as observed by Prof. Zöllner."

nemfrog:

On the Temperature and Physical Condition of the Sun.  The Philosophical Magazine. November 1870.

"Forms and eruptions of cloud-like prominences as observed by Prof. Zöllner."

nemfrog:

Fig. 14. Ideal illustration of the streams of outflowing and inflowing matter up on the sun. World-Life or Comparative Geology. 1883.

nemfrog:

Fig. 14. Ideal illustration of the streams of outflowing and inflowing matter up on the sun. World-Life or Comparative Geology. 1883.

fuckyeahwwiipropaganda:

source
lost-in-centuries-long-gone:

Detail of an Art Nouveau Fireplace Surround Tile of a Rose by raaen99 on Flickr.
presentpasts:

Table orrery, Hartog van Laun, c. 1800-1808, The Netherlands. At the Rijksmuseum, Amsterdam.

presentpasts:

Table orrery, Hartog van Laun, c. 1800-1808, The Netherlands. At the Rijksmuseum, Amsterdam.

nemfrog:

Fig. 5. Where meteorites landed in Iowa. Minerals from Earth and Sky. 1929.

nemfrog:

Fig. 5. Where meteorites landed in Iowa. Minerals from Earth and Sky. 1929.

adlerplanetarium:

On this day in 1967, Surveyor 5 landed on the #Moon’s Mare Tranquillitatis. Surveyor 5 was the first #spacecraft to do lunar soil analysis. Its analysis found that the Moon’s surface was likely basaltic (and not powdery) and was therefor likely conducive for future human #exploration! #tbt

adlerplanetarium:

On this day in 1967, Surveyor 5 landed on the #Moon’s Mare Tranquillitatis. Surveyor 5 was the first #spacecraft to do lunar soil analysis. Its analysis found that the Moon’s surface was likely basaltic (and not powdery) and was therefor likely conducive for future human #exploration! #tbt