It is a cold night around the campfire. megan is trying to get warm by sitting close to the fire and clutching her mug of hot chocolate. how is heat being transferred to chilly megan?

Thermal radiation from the red hot fire, and yummie yummie conduction as the brave person clutches the chocolate mug, and then more yummie as she drinks it. With luck she may sleep well.

“other instruments such as gravimeters and magnetometers are also used in the search for petroleum. extracting crude oil normally starts with drilling wells into an underground reservoir. when an oil well has been tapped, a geologist (known on the rig as the "mudlogger") will note its presence. “ this is what i found on google i hope it