equinox Archives - DOES GOD EXIST? TODAY

March 29, 2024March 27, 2024

Easter Egg Symbolism

Various Easter celebrations and fun activities revolve around eggs. Ancient people must have been amazed to see a new living creature emerge from a seemingly dead object. In ancient Persia, people gave eggs to each other at the spring equinox, and they set that date as the beginning of a new year. Easter egg symbolism arose much later as Christians used eggs to represent the rock tomb and the hatching chick as a symbol of Christ emerging from the tomb.

Lent was instituted to remember the fasting of Jesus, and people who were fasting would not eat meat from cows, sheep, pigs, or fowl. It was also common practice to avoid eating eggs, but chickens still laid eggs, so people decorated them. The original egg decorations were just plain vegetable dyes, but crimson eggs emerged in honor of the blood of Christ.

Eastern European people used intricate designs on eggs called pysanky, which they sold in Ukrainian shops. In Germany, people pierced and hollowed eggs and hung them on shrubs and trees like Christmas trees. In some countries, people used eggs in games. In addition to egg hunts, egg rolling activities were also conducted on the White House lawn. Some egg rollings were started at Sunday School picnics and parades before the Civil War.

The shell of a hen’s egg weighs only about one-fifth of an ounce, and it’s made from calcium carbonate just over one-hundredth of an inch thick. Despite the thin shell, chicken eggs can withstand 130 pounds of force. If it is set perfectly still with its pointed end up, an egg is almost impossible to break with one hand. Only an uneven force, like hitting it on something, can crack an eggshell.

Easter egg symbolism can remind us of Christ’s resurrection, but the egg’s design is one more example of the wisdom God has built into everything we see in the creation.

References: The Easter Book by Francis Weiser, The Old Farmer’s Almanac, and Wikipedia

June 21, 2021June 20, 2021

Summer Solstice in the Northern Hemisphere

June 20, 2021, was the summer solstice in the Northern Hemisphere and the longest period of sunlight of any day this year. Now that we have passed the summer solstice, the days are getting shorter. That raises the question of why the summer solstice is not the hottest day of the year since the Sun is up for the longest time. The answer to that is simple. It’s because every day until September’s fall equinox has more hours of sunlight than darkness, and there is a heat lag. It takes a long time for Earth to heat up after winter, so normally the hottest day is well after the summer solstice.

A more important point is why the summer solstice happens and how it is critical to life on planet Earth. The cause of the solstice and the equinox is that Earth is tilted on its axis by 23 ½ degrees. As it orbits the Sun, that tilt causes every point on Earth to experience different amounts of Sun each day and controls the angles at which the Sun’s rays hit Earth’s surface. On the equinox, the Sun is directly overhead at the equator. At noon, the Sun would shine down to the bottom of a well on the equator. Every other latitude on the planet would have the Sun’s rays hitting Earth’s surface at an angle that is not perpendicular.

As Earth revolves around the Sun, it is essentially a giant gyroscope with the poles always pointed in the same direction. It isn’t until the solstices that the Sun would shine right down a well at its northern or southern position, and that happens to be 23 ½ degrees north or south latitude. So why is that important?

If Earth did not have the axis tilt, we would not have the summer solstice in the Northern Hemisphere. The Sun would always be directly overhead at the equator all the time. Land near the equator would be so hot that life could not exist there. Areas to the north and south would be extremely cold. The temperature differences would create extreme winds, making life difficult. When scientists ran computer simulations, they found that 23 ½ degrees is ideal for minimizing overheating and cooling.

Earth also has a heat sink designed into it—the oceans. Most of the southern hemisphere is covered with water, while the northern hemisphere has more land. Since Earth’s orbit is an ellipse rather than a perfect circle, the southern oceans absorb much of the heat when Earth is closest to the Sun. It just happens that Earth is closest to the Sun when the Southern Hemisphere is in the summer season. It seems like it was planned that way.

We are thankful that we had the summer solstice in the Northern Hemisphere. The Earth’s tilt, spin, and distribution of land and water are not accidents. They are designed features of our planet that speak of God’s wisdom and planning in the creation.

March 21, 2021March 20, 2021

Equinox All Year? Bad Idea

Yesterday, March 20, 2021, the Sun was directly over the equator, and that brought in the spring (vernal) equinox in the Northern Hemisphere. Of course, it was the autumn equinox for those south of the equator. That means if you want to know what direction is due east, all you would need to do is watch the Sun come up, and due west was where the Sun went down. From now until June 20, the Sun will be moving farther north. We call that day the summer solstice. Where we live in the mid-Northern Hemisphere, the Sun will rise and set about 33 degrees north of due east and west on that day. Why do we need to have the Sun moving north and south in our sky anyway? Why can’t we have the equinox all year?

If the Sun continually stayed directly above the equator, life on Earth would be more difficult. Areas near the equator would be much too hot, and regions far from the equator would be much too cold. There would be two narrow “Goldilocks” areas in between that would be hospitable for life. Plants need a respite from the growing season to prepare for the next growth cycle. Animal life depends on the seasons for reproduction and growth. We would miss the beauty of the changing seasons. So having the equinox all year would not be a good idea. Then why does our planet have this variation in the direction of the Sun?

Earth’s axis tilts 23.5 degrees, and as our planet makes its annual journey around the Sun, the tilt varies toward or away from the Sun. At our summer solstice in June, the inclination is toward the Sun, and at the winter solstice, the axis tilts away from the Sun. That makes the Sun appear to move from 23.5 degrees north of the equator to 23.5 degrees south. At the equinox, for a moment, the Sun is precisely over the equator. The next question is, does this just happen to be a lucky accident?

Since this is just one more factor that makes Earth suitable for advanced life, how could we be so lucky? We have discussed before the many factors that must be just right for life to exist. This is one more, and we don’t think it’s an accident. We believe it’s another evidence of a wise Designer. God gave us seasons for a purpose (Genesis 1:14).

March 20, 2020March 19, 2020

Spring Arrived in the Northern Hemisphere!

Just a few hours ago (11:49 p.m. EDT March 19 or 0349 GMT March 20, 2020) spring arrived in the Northern Hemisphere. Officially it is spring, even though it may not feel like it where you live.

For the next three months, the days will continue to get longer as the Sun moves farther north. This year, the Sun reaches its greatest northern latitude on June 20 when it will be at its highest elevation in the Northern Hemisphere sky. In the Southern Hemisphere, it will be at its lowest elevation. The autumn equinox will arrive on September 22. Then, on December 21, the Southern Hemisphere will have the Sun directly overhead at 23 degrees south latitude while it will be at the lowest point in the north.

At Chichen Itza on the Yucatan Penninsula of Mexico, the Mayans built a huge pyramid to a serpent deity around A.D. 1000. They engineered the pyramid so that at the spring equinox, the Sun’s light resembles a huge snake slithering down the steps on the structure’s face. The Mayans called the equinox “the return of the Sun Serpent.” They recognized the reliable and consistent seasons that make life possible. They could not comprehend everything required to create that consistent reliability. They didn’t know the God who created all things.

What does it mean that spring arrived in the Northern Hemisphere? It means that God has designed the Earth and our solar system to be predictable. He located our planet the just-right distance from a just-right star (our Sun). He gave Earth’s axis a just-right tilt relative to our just-right orbit around the Sun to create the seasons. The result, as we wrote yesterday, is that we have a planet suitable not just for life, but for advanced life.

Scientists today use SETI to search for intelligent life elsewhere in the universe. They use telescopes and space probes to look for an exoplanet suitable for life. So far, after millions of hours and unknown amounts of money spent searching for alien life, the results have been zero.

Whether life exists anywhere else in the cosmos makes no difference for the existence of God. As spring arrived in the Northern Hemisphere, it reminds us that life exists here. As we see life blossoming all around us, we are reminded that every human life is precious God. He put us here for a purpose.

March 19, 2020March 20, 2020

Vernal Equinox Arrives Today

The orbit of the Earth around the Sun produces variations in the seasons with four orbital positions having particular significance. Today, March 19, 2020, the Sun will pass directly overhead at the equator. The exact time will be 11:49 p.m. EDT (0349 GMT March 20, 2020). We can rejoice that the vernal equinox arrives today!

This is the earliest equinox in the United States in 124 years! As you can see in the diagram, the usual date for the vernal equinox is March 20 or 21, depending on where you live on the Earth. The reason it arrives on the 19th this year in North America is somewhat complicated, but it has to do with leap years and daylight saving time. We won’t get into that, but I thought we should explain why the diagram differs from this year’s dates.

There is wonderful history of how the Greek scholar Eratosthenes of Alexandria used the equinox to measure the circumference of the Earth. He knew that on the equinox, a pole stuck vertically in the ground left little or no shadow at noon, depending on location. He compared the length of the shadow of a pole in Syene, a town in southern Egypt, with one in Alexandria in northern Egypt. Using the difference in the shadow lengths, he calculated the circumference of the Earth. His calculation was very close to the known circumference today, and it proved the Earth was round. He did that in 245 BC, long before Columbus sailed.

The four polar positions roughly predict the seasons that have been used by every culture to control planting, harvesting, and preparing the soil. In Genesis 1:14, God said, “Let there be lights in the expanse of space to divide the day from the night, and let them be for signs, and for seasons, and for days, and years.” God not only instituted day and night, but He also positioned the Sun and Moon so they could be used to mark the seasons we would need to live on this planet.

As the vernal equinox arrives today, we wish you a happy equinox!! Enjoy the season and the official end of winter in the Northern Hemisphere. We will have more on the spring equinox tomorrow.

March 20, 2019March 20, 2019

Why Is The Equinox Important?

Today, March 20, 2019, is a special day as the spring equinox arrives for the Northern Hemisphere. Today the Sun will set exactly in the west and tomorrow it will rise exactly in the east when observed from the Equator. The day will be exactly 12 hours long and night will be exactly 12 hours long. After today in the Northern Hemisphere, the days will be longer than the nights. Officially spring arrives today at 9:58 PM Greenwich Mean Time (5:58 PM Eastern Daylight Time where we live).

In reality, all of this is an exaggeration of the real situation. Don’t expect a balmy spring day if you live in Michigan (as we do) or other northern areas. Ice and snow have to melt, and the land has to warm up. Nevertheless, the equinox does remind us of Earth’s design and how many variables control our existence on this planet. What does happen on this day is that the Sun will be directly overhead at noon at the equator.

During the northern winter, Earth’s tilt has caused the Sun to be overhead south of the Equator. As the Earth moves around the Sun, the Sun’s location relative our planet will drift north until June. When the summer solstice occurs on June 21, the Sun will be overhead at 23 degrees north latitude. The more direct sunlight not only warms the Northern Hemisphere, but it avoids overheating the Southern Hemisphere.

If Earth did not have a 23-degree axis tilt, the Sun would beat down on the equator from directly overhead all year long. The Equator would become so hot that nothing could live there. The northern and southern latitudes would both freeze. Wind belts created by air rising violently at the equator would be hurricane force 24/7. We see that happening on planets in the solar system that do not have an axis tilt.

Ancient people knew that the position of the Sun changes throughout the year. They used elaborate but primitive observatories to determine the time to plant and harvest based on the Sun’s position. Unfortunately, this led many cultures to worship the Sun. Nowhere does the Bible encourage or condone the worship of any celestial bodies. The Bible recognizes the seasons and the role of the Sun as designed by God for human existence. (See Genesis 1:14-15).

The ancient psalmist David said it (Psalms 8:4) and the writer of Hebrews quoted it (Hebrews 2:6), “What is man that you keep him in mind or the son of man that you look after him?” The equinox is a good time to be reminded of God’s provisions for us and thankfully worship the Creator, not the creation.

September 23, 2017October 5, 2018

Autumn Equinox and Season Design

Autumn Equinox and Season Design
We have just passed the autumn equinox and what we call “the first day of fall.” It will be late December before fall officially ends at the winter solstice. On the first day of fall here in Michigan, it was unseasonably hot, and people were griping about “where is the cool fall weather we are supposed to have?” Long before the first day of winter on December 20-21, we will have snow. Is there something wrong with the seasons, or is the trouble with our understanding?

“Equinox” suggests that the length of the day is equal to the length of the night. The Sun is overhead at the equator, and from now until December 20 it will be directly overhead at progressively greater southern latitudes until it reaches just past 23 degrees south latitude. Here in the north, the Sun’s elevation above the horizon will get progressively lower, meaning that less and less of the Sun’s energy will strike the Earth’s surface so the weather will get cooler.

The problem with this simple picture is that there is a lag in the seasons. During the summer months in the Northern Hemisphere the lakes and oceans warm from the sunshine. Water has a high specific heat, so that heat is stored and is released slowly. That means we stay warm longer than expected in the fall. In the Southern Hemisphere the picture is complicated by the fact that the Earth is closer to the Sun during their summertime, so the radiation is more intense. That might be a problem except that the Southern Hemisphere has more water than the Northern Hemisphere because oceans cover more of the southern Earth’s surface. With that greater storage and absorption capacity moderates the temperatures in the Southern Hemisphere.

The autumn equinox reminds us of the incredibly well-designed system of the Earth. It is easy to over-simplify the seasons and the equinoxes and solstices, but the system functions remarkably well. Without that careful design, the weather picture would be far more unstable than it is. Proverbs 8:22-31 speaks of wisdom’s involvement in all of the creation. We are just now beginning to understand how the system works and how our use of Earth’s resources affect the system.
–John N. Clayton © 2017