Author Archives: Justinc

To Date Ancient Rocks and Artifacts

How do scientists know how old Earth and its rocks are? Modern humans have existed for “only” about 200,000 years, and modern science has existed for only a few hundred years (heck, how do we even know how long we as a species have existed?). So, how do scientists today know how old rocks are? […] Continue reading

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What is Climate Change?

The words “climate change” and “global warming” are thrown around in politics and science, but what is “climate change” and what is causing it? There are actually four causes of climate change: solar brightening, changes in reflectivity, changes in axial tilt, and changes in greenhouse gas abundance. Solar Brightening is the change in energy the […] Continue reading

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Reason for Tides

Tides rise and fall twice a day on Earth, and this is mostly due to the Moon’s gravitational pull on Earth. The Moon’s gravity pull on the Earth’s bodies of water squeezing it towards the Moon. The opposite side of the Earth is also receiving high tides due to this reason. I used the word […] Continue reading

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Historical Astronomers in Context

A portrait of Galileo Galilei

Importance to Astronomy – Galileo Galilei

Galileo Galilei (15 February 1564 – 8 January 1642) contributed many findings related to astronomy, a few include: He took a spyglass and improved upon it so that… Continue reading

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The Speed of Light In Respect to the Scale of the Universe

Distances in space is so great that it needs to be measured in how long it takes for light to travel to that location. Light travels around 299,792,458 m/s or about 671,000,000 mph. Compared to the speed of sound on Earth, which is about 373m/s or about 767 mph, the speed of light is more […] Continue reading

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My First Blog Post

This is my high school graduation photo. https://www.google.com ^ This is a hyperlink to Google. Continue reading

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