Lecture about Pulser (Neutron Star)

I attended a lecture about Pulser last Monday at Osaka Science Museum at Nakanoshima.
Pulser is a name for Neutron Star. Pulsar radiates special microwaves.
If you connect 2,000 TV-antennas, you can hear these microwaves by radio.

The sound of Pulser is like as the sound of tractor’s engine.
It beats steadily and constantly.
The fastest beat was 500 times in a second. And the slowest one needs 10 seconds for each pulse.

The lecture, which organized by British Council, was for common people.
About 50 people from 6-grade elementary school student to elderly were attended.

The speaker was Professor J. B. Burnel. She is the Dean of Science, University of BATH, England.
She found Pulser at 1967 as the first discoverer when she was a university student.

In those days, physicists found that sky was full of microwave radio noise.
When she found Pulser, many people said " That signal was what alien send to the earth".
Even people said the alien was named GREEN ALIEN. In that time, there was a cartoon, in which such named alien appeared.

But she observed two Pulser signals which came from opposite directions, so she believed there was no possibility of intelligence.
Because it was too difficult to believe 2 intellectual creatures send signals at same time.

One of my big surprises was the strength of the Pulser signals.
The several thousands Pulser signals observed in a whole year were no more strong than when you lift small sheet of paper.

And another big surprise was the weight of the Neutron Star.
If we pick up 1 cubic cm from Pulser and put it on a balance, its weight match with the weight of 6 billion people.

END