The Sober Scientist. What an excrutiatingly weird concept to me. I am one myself, a scientist, I mean; and I know how much I have to force myself to not feel but think when it comes to science. Now, don’t get me wrong. I know where the image of the sober scientist comes from. It […]Read More Feynman’s Flower
A satellite in Low Eart Orbit, LEO, can cover just one certain area of the Earth’s surface at a time. The same thing goes when it comes to contacting the satellite. To download data from the satellite, or to send commands to the satellite is possible only during the few minutes each orbit it passes right […]Read More ‘SpaceDataHighway’ – Why and How?
In some sense, this was the shortest visit to a museum ever. I had half-an-hour for this bounty of different instruments from all epochs of science since the 16th century, concentrated in a cellar somewhere on the premises of the University of Padova, in Galileo Galilei’s town. Thankfully, I had a wonderful guide. In addition, […]Read More A visit to Galileo’s cellar
In science you should never say no. To anything. Period. Until it is proven wrong. Then you shout No! to the world. Technology development, now, may be a rather different story. Just take this. What would provoke NASA to give such an un-equivolent message about a particular mainstay of Sci-Fi-literature, the warp drive. One should […]Read More Warping drives
Most of our satellites orbit the Earth – either in Low Earth Orbit, LEO, Medium Earth Orbit, or in Geostationary Orbit, GEO. The closer to the Earth a satellite is the shorter its period. So – What if the satellite is even further away than the geostationary satellites? Why would you place satellites that far […]Read More Satellites in extraordinary orbits
Friday, November 13th, at a conference, Professor Hannu Koskinen, gave a speech about space as an almost infinite source of surprises. Being a part of the Rosetta team, he reminded the audience about comments on the first images showing the duck-shaped comet 67P/Chyryumov-Gerasimenko. The images of Pluto, captured by New Horizons, also were more surprising […]Read More Prepare for surprises
One of my favourite games as a youngster was to skip stones on water. I was really bad at it – and still I became a physicist, a rocket scientist even. So, why does a stone skip on the water? You can find answers here at Quora. It is basically about vectors and where they […]Read More Skipping stones like a boss
Wherever you are early November you can see our closest planet, Venus, glimmering in the morning sky. Sometimes it appears as a morning star, sometimes like a bright evening star. Asteres planetai was the term used in ancient Greece before anyone got clues enough to build up a knowledge about these wandering stars. Now Venus is illuminating the […]Read More To Venus with (love?)
I asked a stupid question on Google+. I rather often do, so that is not unusual. At about the same time of that post, I called mixing up the terms scientists, researchers and engineers like assigning grey colour to a blue sky, something more than simply not getting categorizations straight, on this very blog. I […]Read More Brilliant minds
There are many texts out there which discuss the reflection of light from surfaces. A good example would be found here. Now, as well as these articles are written, I do have a question. How come that water can reflect light? Isn’t it supposed to be transparent? Mirrors work in such a way that electrons […]Read More Why would a lake reflect a mountain?