seeing if anyone knows about space/physics

well anyone can change this topic if they want but I was asked does sound effect gravity or does gravity have an effect on sound I think I know the answer I know yes gravity has an effect on sound since sound is just moving particles and particles have mass, but when trying to explain my friend was lost ha-ha so would anyone know a better way of saying this ( I was told the string explain where if you pull a string tighter the sound will travel faster then if it was loose so the string would be sound and pulling it tight would be mass )

Kerbal space Program I do really need to try playing that, it does implement some realistic measures in space exploration others not so much but that could be helped with some mods I presume,

KSP is the shit I like that made up funny quote about Nasa " just because it worked in kerbal space program doesn't mean it will work in real life " iv put in 100's of hours into ksp, even if its not accurate it really opened my eyes to docking and how rocket trajectory works, which is extremely hard for me the learning curve was steep but well worth it

It is a good soft course into understanding the basics yes, KSP is like the portal personality sphere obsessed with space, Also maverick will definitely look at the mods and go from there,

@ Maverick Sound travels faster in a denser medium. Any kindergartener knows that! Didn't you watch Sesame Street? (continues nonsensical rant.) lol Next space news story! Date: April 17, 2015 Source: RIKEN Summary: Scientists have put forward a blueprint for a purely space-based system to solve the growing problem of space debris. The proposal will be used to detect objects, and a recently developed high-efficiency laser system will be used to track space debris and remove it from orbit. The EUSO telescope, which will be used to find debris, was originally planned to detect ultraviolet light emitted from air showers produced by ultra-high energy cosmic rays entering the atmosphere at night. "We realized," says Toshikazu Ebisuzaki, who led the effort, "that we could put it to another use. During twilight, thanks to EUSO's wide field of view and powerful optics, we could adapt it to the new mission of detecting high-velocity debris in orbit near the ISS." The second part of the experiment, the CAN laser, was originally developed to power particle accelerators. It consists of bundles of optical fibers that act in concert to efficiently produce powerful laser pulses. It achieves both high power and a high repetition rate. The new method combining these two instruments will be capable of tracking down and deorbiting the most dangerous space debris, around the size of one centimeter. The intense laser beam focused on the debris will produce high-velocity plasma ablation, and the reaction force will reduce its orbital velocity, leading to its reentry into Earth's atmosphere.

I have not heard of that one jinsei, at least not using them both, sounds rather interesting will read up more on that thanks, Have you heard of ALMA It revealed a magnetic field close to the event horizon of one blackhole, I read about it in a article heres some notes on it. http://www.eso.org/public/usa/news/eso1515/ “Polarisation is an important property of light and is much used in daily life, for example in sun glasses or 3D glasses at the cinema,” says Ivan Marti-Vidal, lead author of this work. “When produced naturally, polarisation can be used to measure magnetic fields, since light changes its polarisation when it travels through a magnetised medium. In this case, the light that we detected with ALMA had been travelling through material very close to the black hole, a place full of highly magnetised plasma.” The astronomers applied a new analysis technique that they had developed to the ALMA data and found that the direction of polarisation of the radiation coming from the centre of PKS 1830-211 had rotated [2]. These are the shortest wavelengths ever used in this kind of study, which allow the regions very close to the central black hole to be probed [3]. "We have found clear signals of polarisation rotation that are hundreds of times higher than the highest ever found in the Universe," says Sebastien Muller, co-author of the paper. "Our discovery is a giant leap in terms of observing frequency, thanks to the use of ALMA, and in terms of distance to the black hole where the magnetic field has been probed — of the order of only a few light-days from the event horizon. These results, and future studies, will help us understand what is really going on in the immediate vicinity of supermassive black holes.”

Ha! I like how a few light days counts as immediate vicinity. Sedna at its farthest is 5 and a half light days away which I think counts as a few. Check my math someone but our fastest ever object would still take 63 years to reach "a few light-days". Gotta love space. Good article Yu-san.