yes
there is a site glass on right side of engine about mid ways of brake petal Where should the oil leve be in the site glass when the oil level is full?
When immersed in oil, glass becomes nearly invisible due to a phenomenon called "refractive index matching." This occurs because the refractive index of glass closely matches that of oil, leading to minimal light reflection or refraction at the glass-oil interface. As a result, the glass appears to disappear when submerged in oil, making it difficult to see with the naked eye.
no oil and salt is not related
Yes, an oil painting can be framed behind glass, but it is not typically recommended as the glass can create a glare and may not allow the painting to "breathe" properly.
there is a sight glass on the lower right side of the engine fill oil to top of sight glass is full
No, oil does not have the same refractive index as glass. Glass typically has a higher refractive index than most oils. This difference in refractive index is what causes light to bend or change direction when it passes from one medium (like oil) to another (like glass).
nothing
Yes, they can.
There should be a sight glass on the left lower side of the motor. The oil should be visable in the glass.
A well-used glass lantern will inevitably get some soot on it make sure you clean the glass with soapy water to lift off the oil that water alone cannot remove.
Oil is petrol
Crown glass is a type of glass used in lenses. For more information, see Related links below this box.