Albert Richardson came up with the butter churn. Originally in. 1891 who wanted to make butter had to do so by hand in a bowl. Yet, when Albert Richardsonâs invention was a device that consisted. of a large wooden cylinder container with a plunger-like handle which. moved up and down. Doing this, the movement caused oily parts of. cream or milk to become separated from the watery parts. This simplified. the process of making butter.
It may take 1-2 days to recover after LASIK eye surgery. Most patients can return to work the next day after LASIK procedure.
Recovery varies based on the type of laser used and the size and scope of the treated area. For example, the recovery from a traditional, fully ablative CO2 laser is about seven to 10 days. By contrast, recovery after the partially ablative fractional CO2 treatment is three to four days. Expect redness, puffiness and some pain after laser skin resurfacing. You may see blood spots on the treated skin during the first night after your treatment. Don't panic.