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Aleks Scholz
7,889 followers -
More questions than answers.
More questions than answers.

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For +Frank Mueller. Ben Chonzie in the background, Carn Chois, the much more pleasant mountain on the left.
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Next stop. Gamma Cephei.

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The marvellous eyes of science. Make your home proof against the elements. Tesla maps our electrical future. Hell, yeah.

http://www.magazineart.org/main.php/v/technical/scienceinvention/ScienceAndInvention1930-04.jpg.html
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Also, Chapman knows what's good:

p. 170: "Even the durians lay ungathered beneaty the trees, a sure sign that there were no Malays or Chinese in the vicinity. We gathered a dozen of the huge prickly fruits and took them behind the spreading roots of a large tree to enjoy the greatest of delights - a durian feast."

p. 181:  "At this meal there was a meat dish about which there seemed to be some mystery. I found it very good, being less rank than monkey though not so good a s jungle pig. After the meal I was told that I had been eating Jap. (...) Though I would not knowingly have become a cannibal, I was quite interested to have sampled human flesh."

(I'm reading this on paper, therefore I need to copy this at length to be able to find these quotes again.)

The mantra: 

"The truth is that the jungle is neutral. It provides any amount of fresh water, and unlimited cover for friend as well as foe - an armed neutrality, if you like, but neutrality nevertheless. It is the attitude of mind that determines whether you go under or survive. 'There is nothing either good or bad, but thinking makes it so.' The jungle itself is neutral."

Chapman, p. 97. Easily adaptable to other types of wilderness. The mountains, the desert, the sea is neutral, too.

"I used to go out and deliberately get lost so that I was forced to use all my resource and energy to find the way home again. Sometimes I failed to get back before dark, and on several occasions had to spend a night out. This was most valuable experience. At first (...) I would be overcome by panic. (...) Then I would have to take myself firmly in hand and convince myself by steady reasoning that there was nothing there but imagined terrors."

F. Spencer Chapman in "The Jungle is Neutral" (p. 148), a quote that would have been great for the book on getting lost ("Verirren", with +Kathrin Passig).

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We usually say that brown dwarfs can only have miniature planetary systems, and that giants planets around brown dwarfs must be very rare. Well, they might be rare, but apparently they still exist. Here is one.

http://arxiv.org/abs/1307.6335

(Plot mostly attached because it is so pleasantly cryptical.)
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"But there seems to be no compelling reason why the hypothetical stellar planets should not, in some instances, be much closer to their parent stars than is the case in the solar system."

Struve, 1952. An interesting statement, given that the discovery of the "Hot Jupiters"  in 1995, giant planets very close to their parent stars, took astronomers completely by surprise.

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Habitable zone around stars. Planets in the dark grey zone are habitable, no matter what the host star is. For planets in the light grey zones, the type of the host star matters. Earth would not have been habitable around a cooler star than the Sun. 

The plot also illustrates that the overwhelming majority of all discovered exoplanets are literally deadly.

From Kopparapu et al., http://arxiv.org/abs/1301.6674
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