Nuclear Thermal propulsion Unlike most things at Beyond NERVA, the nuclear thermal rocket (NTR) has been built and tested by both the US and the USSR. Both programs looked at a solid core NTR, the simplest type of nuclear rocket. In a nuclear thermal rocket, the heat from a reactor is used to directly heat a propellant,Seguir leyendo

Optimal font-smoothing for Calibre ePUB Reader

September 25, 2017 Previous | Calibre is a pretty popular eBook reader but it has a weakness. Fonts looks terrible, at last on Windows. Here you’ll find an easy solution for this. This is my CSS Stylesheet for a better “Font Smoothing” in Calibre and it works pretty well. I recommend the following fonts, in case they exist on your machine. Category: CSS

¿qué es la Capacidad de Peukert?

Ahora, ¿qué es la Capacidad de Peukert?Es la capacidad de la batería medida en un rating de descarga de 1 amperio. Las baterías casi nunca dicen la capacidad de Peukert, los distribuidores basan la capacidad en ratings de descarga muy bajos, ya que duran más y obtienen mejores lecturas de esta forma. Se conoce como tasaSeguir leyendo


That is what antimatter can do. Annihilating a kilogram of antimatter will give out about ten billion times the amount of energy released when a kilogram of TNT explodes. Under suitable circumstances a proton can change into a neutron and emit energy some of which materializes as a positron, similar to what happens in theSeguir leyendo

the Tunguska large explosion 1908 The Tunguska event was a large explosion that occurred near the Podkamennaya Tunguska River in Yeniseysk Governorate (now Krasnoyarsk Krai), Russia, on the morning of 30 June 1908 (NS).[1][2] The explosion over the sparsely populated Eastern Siberian Taiga flattened 2,000 square kilometres (770 square miles) of forest, yet caused no known human casualties. The explosion is generally attributed to the air burst of a meteor. It is classified as an impactSeguir leyendo

Checking Your Ubuntu Version From the Terminal

Step 1: Open the terminal. Step 2: Enter the lsb_release -a command. Step 1: Open “System Settings” from the desktop main menu in Unity. Step 2: Click on the “Details” icon under “System.” Step 3: See version information.

dynatrace Software intelligence todo en uno: APM, monitorización de infraestructuras cloud, AIOps y DEM. Simplifica y automatiza tu enterprise cloud híbrido gracias a la …

Disable password complexity in ESXi 6.5

After ESXi 6.5 setup is complete, password complexity requirements are enforced for users, esp. root. To change root password to a simple non-complex password by disabling password complexity requirements temporarily use following steps: SSH to host vi /etc/pam.d/passwd Comment first (requisite) and second (sufficient) lines Copy sufficient line and remove use_auth_ok. Leave this edited lineSeguir leyendo