This beautiful object is a corrosion cast of bronchi and trachea, c. 1880-1890, most likely from a rabbit, sheep, or dog. It's part of the new Body of Knowledge exhibition at the Harvard Museums of Science & Culture.
Corrosion casts have been part of anatomical teaching from the 17th century to the present, particularly for creating display specimens. A rapidly hardening substance, often metal or plastic, is injected into blood spaces or other cavities. Then the tissue is dissolved away by strong acids or bases. This cast was created using a mixture of bismuth, lead, tin, and cadmium. After injection, the tissue was dissolved in potassium hydroxide.
Body of Knowledge: A History of Anatomy (in 3 Parts)
Best solar eclipse 2017 video ever.
Yup. He really did.
In the NASA image above, today’s total solar eclipse is seen above Madras, Oregon. Photo by Aubrey Gemignani for NASA. Below, our moon blocks out the sun during the solar eclipse in Depoe Bay, Oregon.
Toaster ovens are the perfect appliance for small things like toasted sandwiches and roasted garlic (try it!), but anything more involved usually requires a full-sized conventional oven.However, despite its small size, the Wolfgang Puck Pressure Oven can handle anything from baked pastries to broiled meats. This kitchen appliance has a minimal countertop footprint, and cooks […]
The Pry.Me Bottle Opener holds tens of thousands of times its own weight, and you can pick one up now from the Boing Boing Store.This remarkable keychain is considerably smaller than any of your keys, but don’t let that fool you: it can easily open any bottle, and could even tow a trailer full of […]