Filter Results
113 results
The G328 sector of the Galaxy, showing the emission from three spiral arms in lines from carbon monoxide (12CO green and 13CO yellow; Mopra), carbon ([CI] red; HEAT Antarctica) and hydrogen (HI blue; Parkes/ATCA). The movie shows a 3D projection of the data cube, with the distance from the Sun obtained from the velocity axis of the cube. The other two axes are the Galactic longitude and latitude.
Data Types:
• Video
Sub-millimetre Galaxies (SMGs) with the JCMT
Data Types:
• Video
This is a movie taped with my cell phone of the VTT control monitor taken on 17 September 2015. The movie shows a heart shaped sunspot und perfect seeing conditions.
Data Types:
• Video
Journey to the Galactic Centre: Cloud chemistry and kinematics near Sagittarius A*
Data Types:
• Video
The video shows a thoothbrush filament moving through a numerical model of a toothpaste enriched with abrasive particles. At the bottom of the simulation domain, an idealistic model of enamel is implemented. It was studied how the abrasive particles interact with the toothpaste fluid and the toothbrush filament. The influence of the abrasive character of the toothpaste can be studied by the induced stresses into the surface of the enamal.
Data Types:
• Video
This is the welcome presentation with the meeting agenda of the 2nd Global Helioseismology Team Meeting, that was held March 10 - 13, 2015 at the Kiepenheuer-Institut für Sonnenphysik, Freiburg, Germany
Data Types:
• Video
Celebrating Crowd Funding with Mopra #TeamMopra
Data Types:
• Video
Supernova remnants, cosmic rays and the interstellar medium
Data Types:
• Video
The abrasive character of toothpaste is dependent on hardness, volume filling factor and size of the abrasive particles (Relative Dentin Abrasion (RDA) value). The addition of abrasive particles in the toothpaste is based solely on empirical data. Tribological investigations of the cleansing effect of toothpastes on the surface of the enamel are very limited. The introduction of numerical models with a predictive power for abrasive suspensions could yield an important contribution for the development of dental hygiene products. This investigation concerns the reduction of the complex tribological system toothbrush – toothpaste – enamel to a microscopic level in order to investigate the interactions between the basic components of a toothbrush employing $\mu$-tribological experiments and smoothed particle hydrodynamic (SPH) simulations. This presentation was given at the Friction, Wear and Wear Protection Conference in Karlsruhe (2014).
Data Types:
• Video
Magnetic field perturbations, $\delta B/B_0$, for different time steps and for the scenario of a vertical magnetic field. The magneto-acoustic wave propagates from the source (piston) located at (x; z) = (1000; -750) km. The horizontal line shows the equipartition level, where the sound speed equals the Alfven speed, $c_\mathrm{s}=c_\mathrm{A}$. The vertical lines represent magnetic field lines.
Data Types:
• Video
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