How to calculate roof runoff
Determine the footprint of your structure (f) in square feet :
Measure along the length of the house or building and along the width of the house or building (in feet). Multiply the two figures together to obtain the square footage of your roof.
Determine the percentage of water collected from each downspout (p).

Count the number of downspouts coming from your roof. Divide 100 by the number of downspouts in order to obtain the percentage of water collected from each downspout.

How to check your cat's ears for possible problems
Check for signs of a fight.
If your cat gets into a fight, this may lead to ear injuries. Gently look inside your cat's ear to check for any signs of a bite or scratch.

If there is a scratch wound from a claw, it will be long and thin. Bite marks may look like tiny punctures or a scrape.

How to control armyworms
Look for early signs.
Because they feed at night, you may not see the caterpillars right away. Brown spots on your lawn are often the first sign that you have an armyworm problem.

An increase of the number of birds in your yard may be an indication of armyworms. The earlier you treat the problem, the easier it is to control and less damage a lawn will sustain.

How to blacken fish
Heat a dry cast iron pan over medium-high heat.
A cast iron pan is a required tool for blackening fish, as other pans aren't capable of delivering the intense heat needed for this preparation. Set the pan onto a charcoal grill or a propane burner set to medium-high heat.
Allow the pan to heat for about 10 or 15 minutes, and do not add any oil to the pan. Melt some butter in a shallow pan.