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Facts of the Matter

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With metals running low, scientists look to space

We use metals for so many different purposes that a list would go on page after page. The most common and most well known are iron and aluminum. It just happens that these are the two most abundant metals in Earth’s crust. Read more

Theories on Earth’s shape continue to fall flat

The recent surge in debate among supposedly educated people about the shape of planet Earth is surprising, considering Eratosthenes, an ancient Greek scientist, measured its circumference 22 centuries ago. Read more

Excellent view of total solar eclipse is worth the trip

My wife and I recently returned from watching the total solar eclipse on Aug. 21. Having been aware of the event and seeking ideal viewing sites since summer of 2016, we made arrangements and reservations that would have been impossible at a later time. Read more

Gravitational waves offer astronomical revelations

In Einstein’s theory of general relativity, gravity is not a force as it was in Newton’s description. In Newton’s view, gravity was due to the attraction of two masses according to the size of the masses and the distance between them. Read more

Smell works more like a sixth sense sometimes

To humans, the sense of smell has a direct link to emotions. Who among us has not, at one time or another, had a memory and its associated feelings come rushing at us when catching a whiff of a perfume, theater popcorn or one of thousands of smells that we associate with events from our past? Read more

Seeing the smallest objects requires humongous energy

It is an interesting aspect of the universe and an ironic sense of unity that it requires more energy to see smaller objects. This is the result of the properties of waves in general and specifically the nature of electromagnetic waves. Read more

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