If you were more specific about the type of aircraft that you are talking about then you will get a more precise answer. There are many different types of aircraft out there, eg jet engined aircraft, piston engined, helicopters. My main experience is on 747-400, A380 ,helicopters. I have never heard of a oil temperature thermometer bulb, only a oil temperature sensor, . I'm not saying they don't exist but they may be specific to piston engined aircraft (which i have never worked on)or it could be the nomenclature that is applied to a certain make of engine by the manufacturer. The very name oil temp thermometer bulb sounds like old terminology,the bulb part of the name could be the lamp or filament that is in the cockpit which warns the pilots of over temp conditions. I will ask my work colleagues about this and get back to you. Regards. S.
Paint
No it was painted with tempera.
Tempera is a low-grade paint and is very thin; oil painting is thicker, which makes it better for a variety of styles. Oil paint also had a slight reflective quality that is prized, whilst tempera is very matte.
Marble mostly. Then oil paint and tempera.
yes
Tempera paint on a wood panel.
underpainting
the economy
Until the early 15th century most artists did. Also later there have been many artists who prefer the qualities of tempera to oil paint.
No, it is not safe to use a meat thermometer for oil when cooking. Oil can reach much higher temperatures than meat, which can damage the thermometer and pose a safety risk. It is recommended to use a thermometer specifically designed for measuring oil temperatures.
No, it is not safe to use a meat thermometer for oil when cooking. Oil can reach much higher temperatures than meat, potentially damaging the thermometer and causing inaccurate readings. It is recommended to use a thermometer specifically designed for measuring oil temperatures.
Yes, a meat thermometer can be used to measure the temperature of oil.