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Cake day: December 20th, 2023

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  • Experienced a river flooding due to excessive rainfall. Both on a small scale on a camping where some tents floated away, which was kind of funny because the owners had warned not to pitch the tents to close to the river.

    More recently witnessed a large scale flooding last winter when large parts of the rhine flooded. There were no casualties in my region, but the damage was quite severe. Very sobering to see the death toll in the upstream regions. Also the impact to agriculture and infrastructure, with frequent rain keeping the ground fully saturated for months al the way up to summer.

    Water is so vital for human civilization, and yet also very dangerous.





  • My understanding is that in a true vacuum light will not be reflected or bent by particles. However, due to gravity bending space time itself, light will follow the curvature of space. It would depend on the observer if the path if light is straight. If you look at the light passing by, it would not be straight under influence of gravity. If light itself is the observer, it will travel in a straight line :)

    In the case of gravitational lensing the observer is looking at light coming in. An outside perspective.