Vacuum Permittivity Constant T-Shirt

Constant: epsilon_0 = 8.8541878188 x 10^-12 F m^-1. 

Vacuum permittivity sets how electric fields behave in vacuum and appears throughout electrostatics. Together with vacuum permeability it helps determine the speed of light in Maxwell's equations. Empty space is not empty of structure.

Product notes
- Unisex cotton T-shirt with a classic crew neckline
- Soft everyday feel with a clean, straightforward fit
- Solid colors are 100% cotton; heather colors may include polyester
- Ribbed collar, taped shoulders, and a tear-away label
- Made to order; check the size chart and variant options before ordering

Care
- Machine wash cold with similar colors
- Tumble dry low
- Do not bleach
- Iron on low heat if needed; avoid ironing directly over the print