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Category/Subcategory: Natural Sciences/Physics

Why is Earth's magnetic shield weakening? - Space

Author: Euronews Knowledge
Earth's magnetosphere is an invisible shield, protecting our planet from harmful solar radiation. Made by euronews, the most watched news channel in Europe, euronews knowledge gives YouTubers amazing access into the scient ... more

Views: 866

Why is it so hard to detect dark matter?

Author: Euronews Knowledge
Made by euronews, the most watched news channel in Europe. euronews knowledge brings you a fresh mix of the world's most interesting know-hows, directly from space and sci-tech experts.

Views: 593

Wave propagation in a sunspot's atmosphere

Author: Johannes Löhner-Böttcher
A sunspot observation (NOAA11823) is shown. First the sunspot (HMI continuum intensity) rotates across the solar disk. Then the region is zoomed in and changes to the high-resolution observation of the Dunn Solar Telescope. Then t ... more

Views: 1066

Before the Big Bang: What Happened? - Space

Author: Euronews Knowledge
The universe was born 13.7 billion years ago with the Big Bang. But what was there before? Scientists are starting to get an answer thanks to the time-travelling Planck mission. Made by euronews, the most watched news channel i ... more

Views: 1014

Making Fire From Water - Futuris

Author: Euronews Knowledge
A euronews futuris feature from October 30, 2013. Made by euronews, the most watched news channel in Europe. euronews knowledge brings you a fresh mix of the world's most interesting know-hows, directly from space and sci-te ... more

Views: 1088

Animation of a setup for the synthesis of colloidal nanoparticles

Author: Christian Klinke
Animation of a setup for the synthesis of colloidal nanoparticles, as it has been used for the synthesis of cadmium selenide nanoparticles e.g. in M. Meyns et al. "Shape evolution of CdSe nanoparticles controlled by halogen compou ... more

Views: 1437

Say cheese: The whey forward in renewable plastics - Futuris

Author: Euronews Knowledge
Whey from cheese production and other agricultural waste can be a valuable raw material for new biodegradable plastic. A European research project is working on using these bi-products in laminated cardboard, food packaging and ev ... more

Views: 825

SPH simulation of a particle impact on a ductile target

Author: Christian Nutto
The sequence shows an impacting body on a ductile target made of Al6061-T1. The impacting body is assumed to be ideally hard. The impact velocity is $45 \mathrm{m/s}$ and is tilted $51^°$ from the horizontal axis. The spacing of ... more

Views: 1088

Brittle fracture in three point bending test

Author: Claas Bierwisch
Simulation of a three point bending test of a silicon crystal. The upper cylinder is pushed downward in a path-controlled trajectory. On contact, the induced stresses on the upper and lower surface are discernible. Tensile stresse ... more

Views: 1681

Synthesis of colloidal PbS nanosheets

Author: Christian Klinke
Synthesis of colloidal PbS nanosheets in a three-neck flask as it has been performed e.g. in T. Bielewicz et al. "Tailoring the height of ultrathin PbS nanosheets and their application as field-effect transistors", Small 11 (2015) ... more

Views: 1612