- Versions of the international System of Units | 0, 0, 1
- International System of Units | 47, 768, 28
- Physics | 276, 40k, 705
- Natural science | 0, 49k, 1k
- Science | 0, 53k, 1k
- Ciro Santilli's Homepage | 262, 182k, 3k
- Electronvolt | 25
- Elementary charge | 34, 291, 2
- Kilogram | 47, 52, 1
- Planck constant | 163, 258, 2