Heat in short (e.g. 2 minute) intervals, stirring regularly, until the water is steaming. Even if these steps are followed, bubbling won't be obvious. The best way to make sure that water is boiling is use a thermometer. At sea level, water boils at (212° F; 100° C) and that temperature goes down as you go higher in altitude.
One minute should be enough, but be very cautious!
6 minutes
i bet 10,000 days to boil the earth.
How long it takes water to boil depends on how much heat is being used. Water boils at 100 degrees C
About 3 minutes
350 minutes
5 minutes
around two minutes
8.30 minutes
around 5 min
it takes me 20 min to boil water and sugar to 300 degrees.
it takes approximately 1657594 hours. i counted
8.30 minutes