Physical Sciences
- Bond number, in fluid mechanics, a dimensionless number expressing the ratio of gravitational forces to surface tension forces
- Chemical bond, the physical phenomenon of chemical substances being held together by attraction of atoms
- Covalent bond, between nonmetals
- Ionic bond, between metal and nonmetals
- Metallic bond, between metals
- Bond albedo, a measure of the electromagnetic radiation reflected from an astronomical body
- Bond graph, a graphical description of a physical dynamic system
- Bond fluctuation model, a lattice model for simulating the conformation and dynamics of polymer systems
- The Bond (Chinese constellation), both a mansion in the White Tiger constellation and an asterism within that mansion
- Bond Crater, a crater on Mars
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