I and my wife are at a location full of beaches.
My wife is 4 months pregnant and she wants to do a para-sailing session.
They take off from the beach, fly over the sea for 5 minutes and then land you back on the beach.
It looks gentle enough to me. There seem to be no jerks except a minor one...
Each site has its own quarterly review period where 10 questions are chosen at random from that quarter to be reviewed for quality.
Ordering
Typically the community bot will post the results of the review afterwards in its own answer.
However, the order it puts them in seems to be either rand...
The Indian Space Research Organisation (ISRO) is launching a Polar Satellite Launch Vehicle (PSLV) this Tuesday (5 Nov 2013) from Satish Dhawan Space Center, Sriharikota, India, flying on the PSLV-C25 mission with Mars Orbiter Mission (MOM), informally called Mangalyaan onboard.
The Ma...
There are already many great booster designs out there - take for example the Saturn V, which has enough power to reasonably put almost anything into orbit.
Do new, developing space programs often use old, proven designs, or do they try to create their own booster from scratch?
In physics, the Lyman-alpha line, sometimes written as Ly-\alpha line, is a spectral line of hydrogen, or more generally of one-electron ions, in the Lyman series, emitted when the electron falls from the n = 2 orbital to the n = 1 orbital, where n is the principal quantum number. In hydrogen, its wavelength of 1215.668 angstroms (121.6 nm or 1.216 × 10−7 m), corresponding to a frequency of 2.47 × 1015 hertz, places the Lyman-alpha line in the vacuum ultraviolet part of ultraviolet in the electromagnetic spectrum. Lyman-alpha astronomy must therefore ordinarily be carr...
