Why is water wet, and fire hot?
this may be a silly question but why is the water wet? all previous answers about water did not explain why the water was wet. we simply understand that water is naturally wet.
Stunned to detect liquid on Mars
an image that looks like a newly discovered liquid on mars makes many people stunned.
Liquid-proof scanner at the airport
cobalt light systems (uk) has successfully designed a scanner that can help determine the type of liquid that is contained in bottles and jars that carry luggage.