Physics
Radio telescopes are better than optical telescopes because

they can work even in cloudy conditions
they can detect faint galaxies which no optical telescope can
they can work during the day and night
All of these

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Physics
In heating frozen foods in sealed pouches in a microwaves, why do you first poke holes in the pouch?

To allow the heat to get into the food through the hole
To allow the aroma of the food to come out through the holes
To allow the microwaves to get into the food through the holes
To prevent the steam pressure from bursting open the pouch

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