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.
Decaf coffee can definitely trigger IBS symptoms in some people even if it doesnât contain much caffeine. Decaf coffee can cause your bowel to contract and bring on bouts of pain and discomfort. Even small amounts of caffeine can irritate your intestinal tract. Other compounds in coffee can cause your intestines to produce more acid and make your symptoms worse.