Category: Science and Energy
Black hole surprises
June 26, 2023
What are black holes?Black holes are formed when a star dies. But it must be a heavy star, 5-10 times heavier than our own star – the sun. Such a […]
When Pre-humans Walked the Earth
June 15, 2023
A friend asked me recently if there were other people on earth when Adam and Eve were created? I replied that this is a controversial topic. Cain, the son of […]
Earthquakes in Turkey, Indonesia, Japan, Oklahoma and Texas – what’s important to know.
February 22, 2023
A very big earthquake occurred on February 6, 2023 near the border between Turkey and Syria, and it rocked the world. Its magnitude was 7.8 and it devastated closely spaced […]
A warming earth changes some things, not others – so is climate change as bad as they say?
October 24, 2022
Global warming is true. It has been verified by gradual events taking place over the past 150 years: glaciers retreating, Arctic ice melting, sea level rising, and coral reefs bleaching. […]
How to prevent a mid-size asteroid from wiping out a city.
October 5, 2022
The simplest way to do this is to give the asteroid a bump…to knock it off course. The physics is simple. In billiards, when a moving ball hits a stationary […]
The first pictures from the new James Webb Telescope – mind-blowing insights to our universe.
July 15, 2022
This week, the first images from the James Webb Space Telescope (JWST) were released by NASA. The telescope replaces the Hubble, with a much larger mirror geared to infra-red wavelengths […]
The most distant star ever discovered, and it’s really really old.
April 16, 2022
Hubble Space Telescope.A new star has been discovered by the Hubble Space Telescope, which has been turning up amazing pictures of space for 32 years. The new star is called […]
A new telescope may tell us about how the universe began.
January 8, 2022
Civilization as we usually define it began about 10,000 years ago. Egyptians lived in towns and cities 7,000 years ago. China was making engraved pottery at that time. The homo […]
The elusive neutrino – a mysterious subatomic particle that may be a key to the unexplained dark matter of the universe.
October 26, 2021
The neutrino is a subatomic particle, smaller than a proton and an electron. The neutrino was proposed by Enrico Fermi and his co-workers in 1930-1932 to explain a common nuclear […]
Three large meteors that hit and damaged the earth – are there more to come?
July 26, 2021
I watched a Nova film on PBS recently about a meteor that struck the earth near a small town in Siberia. It was a gripping story called “Meteor Strike” and […]