In the endoscopic sphincterotomy procedure, the patient will be a given a combination of meperidine, fentanyl, midazolam, or propofol. These knockout drugs relieve anxiety, brings unconsciousness, and stops pain. Therefore, the patient will not feel anything, not even pain, during the surgery.
Explanation is in the file
tinyurl.com/wpazsebu
Heat radiation.
This is the form of heat transfer that doesn’t need a medium to transfer through.
That’s how heat from the sun gets to earth, even though empty space is very cold.