With the window in open position, rub candle wax or a block of paraffin along the sash channels left and right of the window. The sash channel is that area along which the frame glides. Close the window and rub wax on the upper part of both channels.f that doesn't work, work a putty knife blade between the sash and stop by tapping it gently with a rubber mallet, working your way up and down the sash on both left and right sides of the window. Sand the edges of the stop once the window opens using a sanding block.
Introduction. Mount Vesuvius, a volcano near the Bay of Naples in Italy, is hundreds of thousands of years old and has erupted more than 50 times.Its most famous eruption took place in the year 79 A.D., when the volcano buried the ancient Roman city of Pompeii under a thick carpet of volcanic ash.ntroduction. Mount Vesuvius, a volcano near the Bay of Naples in Italy, is hundreds of thousands of years old and has erupted more than 50 times.
A caldera is caused when the ground around a volcano collapses. The Greek Island of Santorini's harbor is a caldera. A caldera lies below Crater Lake in Oregon. The eruption of a volcano will usually cause magma chambers to collapse.he largest type are known as resurgent calderas. This is caused by the widespread collapse of magma chambers that are not associated with a particular volcano or point of eruption, and they are the largest volcanic structures on Earth.