The hip bones are connected together with ligaments that not only help in physical movement but also give stability to human body. The hip as a ball-and-socket joint makes for three dimensional space in movement. […]
Starting in late 2018, two Boeing 737 MAX airplanes crashed, killing 346 people total. The crashes occurred just months apart and the 737 MAX was grounded as a result. Why did both airliners crash? […]
The hip bone and the pelvis are considered to be extremely complex in their skeletal structure. The hip bones constitute of three major parts, each of which support multiple joints to enable physical mobility. […]
Many ideas like axions and sterile neutrinos were proposed, and many experiments like DAMA and LUX have been designed to understand dark matter. Yet, scientists still don’t know what exactly dark matter is. […]
Looking for mysterious dark matter requires a lot of studies and using some detection techniques, including direct and indirect detection, as well as using particle accelerators. […]
Physicists have used three experimental approaches to search for dark matter in which the interaction of dark matter with ordinary matter is assumed. […]
The universe, when examined using the doppler shift, does seem to support the observation that it is expanding, with galaxies moving, some away and some toward us. However, there’s no unique ‘center’ of the expansion. […]
Newton’s theorem, used to calculate rotation velocity, applies to elliptical galaxies. It doesn’t apply to flat disks as, in order to do so, one has to do integrals involving modified Bessel functions of the second kind. […]
When it comes to understanding the relationship between an active galaxy and a black hole, it is one of cause and effect. There is a negative feedback between the black hole and the surrounding galaxy as when the galaxy grows too fast, the black hole produces out-flows that halt any further growth. […]
Accreting black holes at the center of a galaxy are slightly more massive. Gas is funneled toward the innermost edge of the accretion disk. The gas is hot, ionized, plasma and is likely to turn into a tangled internal magnetic field. […]
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