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The LMS bought three four-wheeled diesel railcars from Leyland Motors in 1933. These were allocated to LMS diagram D2132, although this may have been after they were delivered, and may have been required when modifications were made. [1] They were numbered 29950–29952 in the multiple unit section of the LMS
In number theory, a Leyland number is a number of the form + where x and y are integers greater than 1. [1] They are named after the mathematician Paul Leyland. The first few Leyland numbers are 8, 17, 32, 54, 57, 100, 145, 177, 320, 368, 512, 593, 945, 1124 (sequence A076980 in the OEIS).
In the late 1950s, British Rail tested a series of small railbuses, produced by a variety of manufacturers, for about £12,500 each [1] (£261,000 at 2014 prices). [2] These proved to be very economical (on test the Wickham bus was about 9 mpg ‑imp (31 L/100 km)), [ 3 ] but were somewhat unreliable.
1 String theory. Toggle String theory subsection. 1.1 String duality. ... Black string; Brane cosmology; Quiver diagram; Hanany–Witten transition; Supersymmetry
String theory is a theoretical framework that attempts to address these questions. The starting point for string theory is the idea that the point-like particles of particle physics can also be modeled as one-dimensional objects called strings. String theory describes how strings propagate through space and interact with each other.
Polchinski, Joseph (1998) String Theory. Cambridge University Press. Vol. 1: An introduction to the bosonic string. ISBN 0-521-63303-6. Vol. 2: Superstring theory and beyond. ISBN 0-521-63304-4. Szabo, Richard J. (Reprinted 2007) An Introduction to String Theory and D-brane Dynamics. Imperial College Press. ISBN 978-1-86094-427-7.
The Daimler Fleetline (known as the Leyland Fleetline from circa 1975) is a rear-engined double-decker bus chassis which was built between 1960 and 1983. It was the second of three bus models to have a marque name as well as an alphanumeric identity code.
At low energies, type IIB string theory is described by type IIB supergravity in ten dimensions which is a chiral theory (left–right asymmetric) with (2,0) d=10 supersymmetry; the fact that the anomalies in this theory cancel is therefore nontrivial.