The NIST ytterbium-doped fiber laser used can provide up to 530 watts of laser output at a wavelength of 1.07 microns. At full power, they were able to deliver as much as 3.5 uN (0.35 mg) of force to the mirror. The experiments showed the expected linear relation between measured force and laser output.
It's just the way coffee is. Coffee is acidic. That's what probably upsets your stomach, especially if you're not eating or drinking other fluids throughout the day. People say that using coffee grounds are excellent for growing plants. BUT, they are only good for growing plants that are acidic soil loving plants.
Others may drink half a cup and feel jittery and be left with an upset stomach. Thereâs a lot of individual variation when it comes to how coffee makes you feel. So, donât take this as a green light to down a pot a day. Consider what feels best for you. (And if the answer is none, thereâs no reason to start drinking java.)