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2. Diode - Wikipedia

   en.wikipedia.org/wiki/Diode

   Their low efficiency required a much higher forward voltage to be applied (typically 1.4 to 1.7 V per "cell", with multiple cells stacked so as to increase the peak inverse voltage rating for application in high voltage rectifiers), and required a large heat sink (often an extension of the diode's metal substrate), much larger than the later ...

3. Kardashev scale - Wikipedia

   en.wikipedia.org/wiki/Kardashev_scale

   Projection of the Kardashev scale to 2040 based on data from the International Energy Agency World Energy Outlook. Kardashev presented for the first time a classification of civilizations according to the level of the rate of their energy consumption, or ability to harness power, in an article entitled Transmission of Information by Extraterrestrial Civilizations, published in 1964 first in ...

4. Julia (programming language) - Wikipedia

   en.wikipedia.org/wiki/Julia_(programming_language)

   Julia is a high-level, general-purpose [17] dynamic programming language, designed to be fast and productive, [18] for e.g. data science, artificial intelligence, machine learning, modeling and simulation, most commonly used for numerical analysis and computational science.

5. Superconductivity - Wikipedia

   en.wikipedia.org/wiki/Superconductivity

   Superconductivity is a set of physical properties observed in superconductors: materials where electrical resistance vanishes and magnetic fields are expelled from the material.

6. Lithium–sulfur battery - Wikipedia

   en.wikipedia.org/wiki/Lithium–sulfur_battery

   The lithium–sulfur battery (Li–S battery) is a type of rechargeable battery.It is notable for its high specific energy. [2] The low atomic weight of lithium and moderate atomic weight of sulfur means that Li–S batteries are relatively light (about the density of water).

7. Hubble's law - Wikipedia

   en.wikipedia.org/wiki/Hubble's_law

   Independent of distance ladders and the cosmic microwave background. 2020-11-07 67.4 ± 1.0: T. Sedgwick et al. [110] Derived from 88 0.02 < z < 0.05 Type Ia supernovae used as standard candle distance indicators. The H 0 estimate is corrected for the effects of peculiar velocities in the supernova environments, as estimated from the galaxy ...

8. Activated carbon - Wikipedia

   en.wikipedia.org/wiki/Activated_carbon

   Activated carbon. Activated carbon, also called activated charcoal, is a form of carbon commonly used to filter contaminants from water and air, among many other uses. It is processed (activated) to have small, low-volume pores that greatly increase the surface area [1] [2] available for adsorption or chemical reactions. [3]