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.
So yes, coffee does make you poop (if youâre one of the 30-40%) and it does so because it interacts with several hormones that regulate bowel movement. -Francesco. References and further reading. 1  SR Brown et al. ( 2 1990) â Effect of coffee on distal colon function. â 3  Gut. 4  BR Douglas et al.