7 facts
This phenomenon, known as the Mpemba effect, is still not fully understood but has been observed in various experiments. Possible explanations include evaporation, convection, and supercooling effects, making it a persistent scientific puzzle.
Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible. Its low water content, acidic pH, and hydrogen peroxide content create an environment where bacteria and fungi cannot grow.
The hydrochloric acid in your stomach has a pH between 1.0 and 3.0, powerful enough to break down a razor blade over time. While it would corrode, it's not advised to test this as it's still extremely dangerous and can cause severe internal damage.
Its low water content and high acidity create an inhospitable environment for bacteria and microorganisms. Archaeologists have found pots of honey in ancient Egyptian tombs that are still perfectly preserved and edible today, thousands of years later.
This isn't a smell in the traditional sense, but rather the detection of ethyl formate, an ester molecule, in interstellar clouds. This same chemical compound is responsible for the characteristic aroma and flavor found in raspberries and rum here on Earth.
This counterintuitive phenomenon, observed by Erasto Mpemba, suggests that under specific conditions, hot water can freeze before an identical volume of cold water. Scientists are still debating the exact mechanisms, with supercooling and convection being among the leading theories.
Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible. Its low water content, acidic pH, and hydrogen peroxide content make it an inhospitable environment for bacteria and microbes.