Mathematical model of wide-band oscilloscope system is established. The analysis is based on the concept of the leading pole. An approximate expression of oscilloscope system is given.

There's a 50-50 chance that the North Pole will be ice-free this summer, which would be a first in recorded history, a leading ice scientist says.

Yes, confirmed in recent ZetaTalk. The Spiral, as seen in Norway recently, is seen leading into the pole shift, and thus memorable.