Mach may refer to

Mach number Mach number (M or Ma) (; ) is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound. It is named after the Moravian physicist and philosopher Ernst Mach. : \mathrm = \frac ...

, the speed of sound in local conditions. It may also refer to:

Computing

Mach (kernel) Mach () is a kernel developed at Carnegie Mellon University by Richard Rashid and Avie Tevanian to support operating system research, primarily distributed and parallel computing. Mach is often considered one of the earliest examples of a microk ...

, an operating systems kernel technology * ATI Mach, a 2D GPU chip by ATI *

GNU Mach GNU Mach is an implementation of the Mach microkernel. It is the default microkernel in the GNU Hurd. GNU Mach runs on IA-32 machines. GNU Mach is maintained by developers on the GNU project. It is distributed under the terms of the GNU Genera ...

, the microkernel upon which GNU Hurd is based * mach, a computer program for building RPM packages in a chroot environment

Places

* Machh or Mach, a town in Pakistan *

Machynlleth Machynlleth () is a market town, community and electoral ward in Powys, Wales and within the historic boundaries of Montgomeryshire. It is in the Dyfi Valley at the intersection of the A487 and the A489 roads. At the 2001 Census it had a popul ...

or Mach, a town in Wales *

Mach (crater) Mach is a large lunar impact crater of the class known as a walled plain. It is located on the far side of the Moon and cannot be viewed directly from the Earth. Nearby craters of note include Joule to the northeast, Mitra attached to the wester ...

, a lunar crater * 3949 Mach, an asteroid

Other uses

* Mach (surname) * "Mach" (song), a 2010 song by Rainbow * Mach (Transformers), a Multiforce character in ''Transformers: Victory'' * ''M.A.C.H.'' (video game) *

Muscarinic acetylcholine receptor Muscarinic acetylcholine receptors, or mAChRs, are acetylcholine receptors that form G protein-coupled receptor complexes in the cell membranes of certain neurons and other cells. They play several roles, including acting as the main end-rece ...

(mACh) * Fly Castelluccio ''Mach'', an Italian paramotor design * Vietnamese ''mạch'', an obsolete Vietnamese currency unit *

Hayato Sakurai also known as , born August 24, 1975, is a Japanese mixed martial artist. A professional competitor since 1996, he has formerly competed for the UFC, PRIDE, DREAM, Shooto, Vale Tudo Japan, DEEP, and participated in the Yarennoka!, Dynamit ...

or Mach (born 1975), mixed martial artist * M.A.C.H., a fictional series of cyborg and robot agents in '' M.A.C.H. 1''

Computing

Places

Other uses

See also