polytropos' photos with the keyword: black

The fabulous cars of Cuba – #8 The black car in Trinidad. Calle Gutiérrez (21.80342, -79.98561); [130°]

Sevilla – Monte Carmelo (37.37671, -05.99702); [270°]

Centre Dürrenmatt Neuchâtel The Centre Dürrenmatt Neuchâtel (CDN) exhibits Friedrich Dürrenmatt's paintings and drawings. It is a part of Swiss National Library, just like Swiss Literary Archives, which has a close cooperation with CDN. The Centre Dürrenmatt, which was opened in the September 2000 in the upper Neuchâtel, is located in the first Dürrenmatt's residential place in 1952. The Swiss architect Mario Botta was assigned to rebuild the house. The two chairs are created by Mario Botta ("seconda", 1982). Taken with the SmartPhone at low light, sorry for the bad quality. => Wikipedia => Centre Dürrenmatt Neuchâtel => Friedrich Dürrenmatt , Swiss author and dramatist. (1921 – 1990). (47.00113, 06.93630); [345°]

Der Aschenbecher Das Bild läuft wohl ein wenig unter Experimentalfotografie. Es ist ein TV-Screenshot vom Spielfilm "Hindenburg" aus dem Jahre 2011. Regie Philipp Kadelbach. Der Ausschnitt und das Licht hat mir gefallen. [158/200]

now it is scientifically proven: there is water on Mars! :-) Vor 2 Jahren: => 28.09.2015 – Spiegel online => 29.09.2015 – Welt | Wissen => 01.02.2017 – Frankfurter Allgemeine

hot spots on the moon, visible from the earth. One day in the far past the moon stopped rotating because of the force of gravity of the earth. That's why we see now always the same side of the moon. In the above picture we can see the half of the waxing moon. Taken with a Nikon, mounted on a reflector telescope Ø 85 mm. 01 – 06: Vallis Alpes and mares ("oceans") on the moon. 11 – 17: Apollo landing points on the moon, 1969, 1971 and 1972. 21 – 27: biggest craters. ➽ See also PIP ;-) ➽ enlargement Ko Hummel (46.7392, 07.3868)

waxing half moon Foto mit einer Nikon, montiert an ein Reflektor-Teleskop Ø 85 mm. Ich habe das Bild noch in alten Beständen gefunden, und gedacht, das dürfe ich der Öffentlichkeit nicht vorenthalten ;-) Anziehungskraft Erde / Mond: Gravitationskonstante G: 6,67430 * 10^-11 m³/kg*s² Gewicht des Mondes (m1): 73’490’000’000’000’000’000’000 kg (7,349 * 10^22 kg) Gewicht der Erde (m2): 5,972 * 10^24 kg Abstand – Mond (r): 384'400 km (384'000'000 m) Anziehungskraft F = G * ((m1 * m2) / r) = [(6,6743 * 10^-11) * (5,972 * 10^24) * (7,349 * 10^22)] / 384'000'000² = 1,985 * 10^20 Newton. 1 N = 0,102 kg F = 2,02486 * 10^19 kg (20'248'600'000 t) (46.7394, 07.3783) [170/200]