Iridescent Hematite - Elba Island, Tuscany, Italy
Oh, what a treat! Alas, Elba hematite is almost exhausted, but this mineral, in this small island, has helped make great ancient Rome. They used to extract metallic iron from hematite, loading this mineral with coal in clay ovens that reached temperatures of 1300 °C. Blowing air inside the oven with a bellows, oxygen, carbon, and carbon dioxide produce carbon monoxide, which reacts with hematite to give metallic iron and again carbon dioxide.
Fe2O3 + 3CO —> 3CO2 + 2Fe
The metal was then worked extensively in the forge to get the final product.
So cool! “Do not regret growing older. It is a privilege denied to many.”
Baby hummingbirds wait for mama atop gargoyle
iPhone earphone jack speaker
iPhone 4S用にインコ。iPhone 5はイヤホンジャックが下なのでコウモリを。コウモリスピーカーは、音楽を超音波に変換する機能とか付いたら面白いかもしれませんね。人間には聴こえませんが。
A true parrot type for iPhone4. A bat type for iPhone5 because iPhone5 has earphone jack on the lower part. If the bat speaker could convert the sounds to ultrasonic wave, it might be fun. Human ear can not hear that though.
I HAVE A MIGHTY NEED
THE BAT THO
♦ Leonardo da Vinci - drawings&sketches ♦ [Anatomy - Part 1/…]
Mouse embryo (16 dpc) expressing the epithelial-specific nuclear marker K14-H2B-GFP, illustrating the pattern of whisker follicles on the face
The Rockefeller University, Fuchs Lab
New York City, New York, USA
Technique: Fluorescence (4x)
I keep fantasizing about Toph’s return.
I keep fantasizing about Toph
I keep fantasizing about Toph.
Chandler Riggs attends AMC’s ‘The Walking Dead’ panel during Comic-Con International 2014 at San Diego Convention Center on July 25, 2014 in San Diego, California.