cesis

7 ms·

1.
Propellantless Propulsion in Gravity Field(space.stackexchange.com)
2 points by cesis 4y ago|0 comments
2.
by cesis 4y ago
Why not? Add a fin to a baloon and you can steer it. And once the baloon can hold direction in the wind with the help of the fin, you can add sail to actually get some propulsion in direction other than wind.
3.
by cesis 4y ago
Next week?
4.
by cesis 5y ago
http://silelis.com projectors and http://snaige.lt refrigerators are the first ones that come to mind.
5.
by cesis 5y ago
It has a name - https://en.m.wikipedia.org/wiki/Thalassophobia
6.
by cesis 5y ago
-70C can be expected in Arctic.
7.
by cesis 5y ago
And in this particular case the underlying text is visible even with naked eye.
8.
by cesis 5y ago
Strictly speaking every 10m under water increases pressure by one bar. So elastic bag 10m under water would take up 2x less space.
9.
by cesis 5y ago
Actually steam and fog are different things. Fog is already condensed steam that consists of small water droplets. This technology captures the condensed water droplets and at this point no no extra latent energy from steam is released.
10.
by cesis 5y ago
These types of attack are known as Van Eck phreaking https://en.m.wikipedia.org/wiki/Van_Eck_phreaking
11.
by cesis 5y ago
Apparently ballpoint pen manufacturing requires some precision technology - China acquired it only in 2017 https://www.washingtonpost.com/news/worldviews/wp/2017/01/18...
12.
by cesis 5y ago
At one time Pepsi actually owned several USSR military vessels https://www.businessinsider.com/how-pepsi-briefly-became-the...
13.
5k-year-old man was 'oldest plague victim'(bbc.com)
3 points by cesis 5y ago|0 comments
14.
by cesis 5y ago
I often have trouble with claimed cognate words without any references or analysis. This very often applies also to Wiktionary. E.g. even the given example - I would find it believable that "muscle" cognates with Latvian "mie
15.
by cesis 5y ago
There exists an entire industry for counting and sorting things(e.g. optical bean sorting). There also are rather cheap optical tachometers(measuring rotations by applying reflective tape on rotating surface). I would guess such devices cou
16.
by cesis 5y ago
That happens in Olympic Games https://www.olympic.org/news/double-gold-medal-joy-as-oleksi...
17.
by cesis 5y ago
He is referring to Lost Cosmonauts conspiracy theory https://en.m.wikipedia.org/wiki/Lost_Cosmonauts
18.
by cesis 5y ago
Most striking "non-invention" to me seems heliograph. We could have had telegraph communications 2000 years ago.
19.
by cesis 6y ago
Are you thinking of Machiavelli?
20.
by cesis 6y ago
There are many already existing HVDC transmission lines, e.g.: https://en.m.wikipedia.org/wiki/File:HVDC_Europe.svg
21.
by cesis 6y ago
I'm wondering whether this applies nowadays with all the modern safety equipment available. And it is also possible to run pulsating DC.
22.
by cesis 6y ago
Actually most long-range high-voltage transmission lines are DC.
23.
by cesis 6y ago
It also might be off-site construction. https://en.m.wikipedia.org/wiki/Off-site_construction
24.
by cesis 6y ago
To me these seem unhygienic - hands often touch the dryer also droplets are projected upwards(often in your face).
25.
by cesis 6y ago
It's actually a single ship not 2. https://en.m.wikipedia.org/wiki/Pioneering_Spirit_(ship)
26.
by cesis 6y ago
For Kansas label covers geographic center.
27.
by cesis 6y ago
Central Banks can enforce negative interest rates. https://en.m.wikipedia.org/wiki/Negative_interest_on_excess_...
28.
by cesis 6y ago
The novel is from 1908. That's before Russian Revolution.
29.
by cesis 6y ago
There already are people living in LEO, where resource availability is even bigger problem. The same with radiation shielding.
30.
Microsoft files patent to record and score meetings on body language(bbc.com)
4 points by cesis 6y ago|0 comments

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