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Alexander von Humboldt

Alexander von Humboldt

112°

Foundations of Quantum Theory: From Classical Concepts to Operator Algebras (Fundamental Theories of Physics Book 188) 1st ed. 2017 Edition, Kindle EditionThis book studies the foundations of quantum theory through its relationship to classical physics. This idea goes back to the Copenhagen Interpretation (in the original version due to Bohr…
bubmag
June 18, 2020
Alexander von Humboldt

Biodegradable Laser Arrays Self‐Assembled from Plant Resources

Our quality of life is largely supported by materials innovations providing for instance advanced electronic, optical, thermal, or structural properties. Unfortunately, many of present‐day advanced materials are sourced from nonsustainable resources, have high energy demands in their production, and face technical or economic obstacles in their recycling, which has a…
bubmag
June 14, 2020
Alexander von Humboldt

Ultrastable Surface‐Dominated Pseudocapacitive Potassium Storage Enabled by Edge‐Enriched N‐Doped Porous Carbon Nanosheets

Introduction Limited Li resources in the earth's crust (20 ppm) and the ever‐increasing demands for large‐scale electrical energy storage have stimulated numerous efforts for alternative energy storage systems beyond the state‐of‐the‐art Li‐ion batteries.1 K‐ion based energy storage systems, such as K‐ion batteries or related hybrid capacitors, have recently emerged as promising…
bubmag
June 8, 2020
Alexander von Humboldt

Love the parasite you’re with

Bloodsucker, leech, tick – few things have a reputation worse than parasites. But these biological hangers-on also have a comic cultural history. In biology, a parasite is an organism that lives on or in a host organism and gets its food (or other benefits) from (or at the expense of)…
bubmag
June 3, 2020
Alexander von Humboldt

A Brief History of Medical Face Masks

If you happened to find yourself in 17th-century Naples, you were in for a rough time. The Plague of 1656 was in full swing and would claim an estimated 300,000 lives in Naples alone. If you were one of the unlucky souls to come down with the buboes and high…
bubmag
May 29, 2020