Weather’s mugginess is all relative
As I sat in my kayak in Maunalua Bay in the muggy air and dwindling afternoon light last week, my thoughts focused on humidity. Read more
As I sat in my kayak in Maunalua Bay in the muggy air and dwindling afternoon light last week, my thoughts focused on humidity. Read more
Even with as much publicity as the current Puna eruption has garnered, there is still some misunderstanding about Kilauea Volcano’s eruptive behavior. Read more
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
Thermonuclear reactions deep in the sun’s interior consistently generate the same amount of energy as 2.5 billion 500-megawatt generators, the largest on Earth. Read more
Is water at 200 degrees Fahrenheit twice as hot as water at 100 degrees Fahrenheit? Read more
The Science magazine event of the year was the collision of two neutron stars. This event, the first ever detected, produced both light and gravitational waves. Read more
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Resonance is forced motion at a frequency near the natural oscillation frequency of a system. Read more
If the sky is not cloudy tonight and the air is not too cold, it might be worth a few minutes to have a look in the southern sky for the meteoric streaks of light from the Geminid shower. Read more
Diodes, like transistors and computer chips, rely on semiconductivity. Read more
Luigi Galvani discovered bioelectricity in the late 1770s when he began to experiment with muscular contraction of frog’s legs by electrical stimulation. Read more
Asteroids are common in our solar system, but astronomers have never seen one from outside the solar system, until now. Read more
Spin is in. Stars spin around supermassive black holes. Planets spin in orbit around the sun. Read more
Crystals are everywhere. With few exceptions the solid inorganic substances that make up our world are crystalline. This includes rocks, minerals, ceramics and metals. Read more
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
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
Proteins are the most important of all biochemicals. They are involved in nearly all bodily processes in one way or another. Read more
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
‘King tides” is a colloquial term for the highest occurring tides. They are a type of spring tides, which have nothing to do with spring, but rather the position of the sun and moon. Read more
The continents are: Australia, Antarctica, Africa, Asia, Europe, North America, South America and Zealandia. Read more
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
Charging a cellphone on an induction pad seems like magic, and in a way it is. Induction is a feature of electromagnetism that Michael Faraday stated in 1831, now known as Faraday’s law. It is the basis for much of modern electrical and electronic technology. Read more