- 
						481. 
					
						
Medical physics
Subjects
BiophysicsPhysics
 - 
						482. 
					
						
Medieval astronomy
Subjects
Astronomy
 - 
						483. 
					
						
Melting points
Subjects
FusionThermochemistry
 - 
						484. 
					
						
Membrane fusion
Subjects
Cell membranes
 - 
						485. 
					
						
Membrane separation
Subjects
Separation (Technology)
 - 
						486. 
					
						
Mensuration
Subjects
Engineering
 - 
						487. 
					
						
Mesons (Nuclear physics)
Subjects
Cosmic rays
 - 
						488. 
					
						
Mesoscopic phenomena (Physics)
Subjects
Physics
 - 
						489. 
					
						
Metal clusters
Subjects
Microclusters
 - 
						490. 
					
						
Metal insulator semiconductors
Subjects
Metal oxide semiconductors
 - 
						491. 
					
						
Metal oxide semiconductors
Subjects
SemiconductorsTransistors
 - 
						492. 
					
						
Metallic films
Subjects
Thin films
 - 
						493. 
					
						
Metallic glasses
Subjects
AlloysAmorphous substances
 - 
						494. 
					
						
Meteorological instruments
Subjects
Physical instruments
 - 
						495. 
					
						
Meteorological optics
Subjects
Atmospheric physics
 - 
						496. 
					
						
Meteorologists
Subjects
Geophysicists
 - 
						497. 
					
						
Meteors
Subjects
 - 
						498. 
					
						
Microclusters
Subjects
Atoms
 - 
						499. 
					
						
Microcosm
Subjects
Cosmology
 - 
						500. 
					
						
Microelectronics
Subjects
ElectronicsMicrotechnologySemiconductors
 - 
						501. 
					
						
Microfluidics
Subjects
Fluid power technology
 - 
						502. 
					
						
Microprobe analysis
Subjects
Microchemistry
 - 
						503. 
					
						
Microradiography
Subjects
PhotomicrographyRadiography
 - 
						504. 
					
						
Microscopes
Subjects
 
Last updated dated: 01/11/2025