Pearl Beauty and Design

Pearl Beauty and Design

We have often reported on how design in nature has helped human “inventors” develop new products or improve old ones. It seems that lowly mollusks can teach humans some lessons from pearl beauty and design.

When a grain of sand or a tiny bit of debris enters the mollusk’s shell, such as an oyster or mussel, the creature goes into a defensive action to protect itself from the irritating particle. The oyster deposits a crystalline form of calcium carbonate known as aragonite. Limestone is primarily calcium carbonate, but it lacks the iridescent appearance of this crystallized form. The smooth layers of mineral and protein which the mollusk deposits on the foreign particle is called nacre (pronounced NAY-ker). The layers of nacre take on a beautiful, iridescent, and shiny appearance that gives pearls their beauty.

The question that has bothered scientists for more than a century is how the oyster can change a jagged or lopsided fragment of grit into a perfectly round and smooth pearl. However, pearl beauty and design remained a mystery until recently when a research team studied pearls from Akoya pearl oysters (Pinctada imbricata fucata) in Australia. First, they used a diamond wire saw to slice pearls in half. Then they polished the cut surfaces and used various electron microscopes to study them more carefully than anyone had done before.

The researchers refer to the layers of nacre as “tablets.” For example, one pearl they studied had 2,615 tablets deposited over 548 days, or 4 to 5 tablets per day. The pearl was only 2.5 mm in diameter, so the tablets were extremely thin. However, the mollusk modulates the thickness of the nacre layers according to “power-law decay across low to mid frequencies, colloquially called 1/f noise.” That means the mollusk uses some math to adjust the thickness of the layers to compensate for irregularities. Where one layer is thin, the next is thicker to self-correct, so irregularities heal themselves in the following few layers.

One of the researchers, Laura Otter, a biogeochemist at the Australian National University, said: “These humble creatures are making a super light and super tough material so much more easily and better than we do with all our technology.” Using calcium carbonate and protein, oysters make nacre 3,000 times tougher than the materials from which they make it. Another research team member, Robert Hovden, a materials scientist and engineer at the University of Michigan, said that understanding how mollusks make pearls could inspire “the next generation of super materials.” That might include materials for better solar panels or for use in spacecraft.

Once again, design in nature gives us some valuable insights. Even lowly mollusks can teach humans some lessons through pearl beauty and design, thanks to the Designer of nature.

— Roland Earnst © 2021

References: ScienceNews.org, and Proceedings of the National Academy of Sciences

Christmas Facts and Fiction

Christmas Facts and Fiction
What’s wrong with this picture?

The “Does God Exist?” program is an effort to show that science and faith are friends and not enemies. At this time of year, atheists and skeptics criticize the celebration of Christmas and say the facts are not consistent with scientific evidence. Most of the complaints we see are about things that show up in TV shows and Christmas cards but are not actually in the Bible. The biblical account of the birth of Christ comes from two sources. They are the Jewish writer Matthew (Matthew 1:18-2:23) and the gentile writer Luke (Luke 1:26-2:20). Mark and John do not record the birth of Christ. We need to separate Christmas facts and fiction.

Many of the complaints about the Christmas story revolve around the star of Bethlehem. The shepherds of Luke 2:8-20 never saw a star, nor did Herod. Matthew 2:1-12 tells about the star and the “wise men from the east.” The “wise men,” or “magi” in the original language, were Persian astronomers or priests. Magi were present in Arabia, India, Assyria, and Persia, and they were most likely astrologers. We don’t know how many there were, nor do we know their names. They went first to Jerusalem, not Bethlehem. The Jewish priests knew from Micah 5:1-2 where the Messiah would be born, but they didn’t know when, nor did Herod.

In Matthew 2:9-10, the star led the magi to a house (verse 11), not a stable. A celestial star would not lead to a particular house, and the Christ child was no longer in a manger but a house. The Bible records several times when people were led by what the Bible calls a “Shekinah,” which was a pillar of fire or cloud. (See Exodus 13:21, 24:17, 40:38; Ezekiel 1:28,10:18-19, 11:23). This was a purposeful miracle of God, not a celestial event. In other words, the image on your Christmas card is almost certainly not accurate.

Separating Christmas facts and fiction, there are two uncontested facts in the biblical account. One is that Jesus Christ came to save all people, and the magi were Gentiles, so this was not just a Jewish event. The second is that Christ fulfilled prophecies written long before His birth. Isaiah 7:14 repeated in Matthew 1:23 and Micah 5:2 repeated in Matthew 2:6 are clear. The prophecy of Hosea 11:1 was repeated in Matthew 2:15. Jeremiah 31:15 was repeated in Matthew 2:18. Isaiah 40:3 was repeated in Matthew 3:3.

When we separate Christmas facts and fiction, it takes considerable faith to believe that the fulfillment of those Bible prophecies was just a hoax. Trying to find ways to reject what the Bible says and live in defiance of God offers no reward and no incentive to live constructively. However, believing in Jesus and acting on that faith can bring blessing and purpose to our lives.

— John N. Clayton © 2021

Lost Loved Ones at Christmas

Lost Loved Ones at Christmas

Christmas should be a time of joy, love, celebration, and family. Unfortunately, for many of us, the glitz and color of Christmas are dimmed by the loss of a loved one during the previous year. The family traditions of the holiday season are painful reminders of lost loved ones at Christmas.

For me personally, this Christmas has an empty feeling. Christmas was my son Tim’s favorite time of year. He couldn’t see the decorations because of his blindness, but he enjoyed remembering the trees we had when he was a child and could see. He was in his fifties but still wanted to have his large stocking full of the usual Christmas foods and small toys like a squeeze ball or a bottle of perfume. He loved Christmas music and could sing all of the familiar songs. His sisters frequently sent him singing cards which he played until the batteries wore out.

I share that with you because I know that many of our “regulars” have had a tough year and are missing their lost loved ones at Christmas. Christmas will bring some pain for them, knowing that the usual things we did together can no longer happen. Someone who shared this experience was Henry Wadsworth Longfellow, who wrote the words to a great Christmas song in 1863. Longfellow’s first wife died in childbirth in 1859. In 1861 his second wide died from burns. In 1863 his son joined the Union army and was very severely wounded and near death.

As Christmas approached in 1863, Longfellow composed the poem that is one of our Christmas standards:

“I heard the bells on Christmas Day. Their old familiar carols play, and wild and sweet the words repeat of peace on Earth, good will to men. And I thought how, as the day had come, the belfries of all Christendom, had rolled along the unbroken song of peace on earth good will to men. Still ringing, singing on its way, the world revolved from night to day, a voice, a chime, a chant sublime of peace on earth, good will to men. And in despair I bowed my head, there is no peace on earth I said; for hate is strong and mocks the song of peace on earth, good will to men. Then peeled the bells more loud and deep: God is not dead, nor does He sleep; the wrong shall fail, the right prevail with peace on earth good will to men.”

If you, like me, are staring at an empty stocking this Christmas, stem the tears by remembering that the story of the baby in the manger ended with an empty tomb. So too will we one day be reunited with the lost loved ones at Christmas we miss so terribly now. With that in mind, have a great Christmas holiday.

— John N. Clayton © 2021

Santa Claus and Jesus Christ

Santa Claus and Jesus Christ

In my radio debate with Jon Murray, he said that he didn’t believe in God for the same reason he didn’t believe in Santa Claus. I understand where he is coming from because many folks equate Santa Claus and Jesus Christ. The sad commentary is that many who claim to be Christians cannot tell you why they believe what they believe because they have only a shallow, inherited faith.

The Santa character originated from a 4th century Greek Catholic bishop in Lycia. He came into the western culture in 1823, and a 1930 Coca-Cola ad popularized him as a man in a red suit. Here are some contrasts between Santa Claus and Jesus Christ:

1) Santa lives at the North pole and Christ is omnipresent (Acts 17:24-28)
2) Santa rides in a sleigh, and Jesus walks on water.
3) Santa is oblivious to our problems, and Christ has lived them (Hebrews 4:15).
4) Santa comes once a year while Christ is with us 24/7/365 (Matthew 28:20).
5) Santa gives us stuff we don’t need. Christ gives us everything we really need (Matthew 7:7).
6) Santa invades while Jesus stands at the door and knocks (Revelation 3:20).
7) You stand in line to see Santa. Jesus is always accessible (Acts 17:28).
8) Santa asks your name while Jesus knows your past (Psalms 139:15).
9) Santa chastises (better not cry) while Jesus offers help (Matthew 11:29).
10) Santa makes toys while Jesus makes new life (Romans 6).


This is not just a cute comparison. It is where we all live. Do we want new toys (a boat, car, TV, etc.), or do we need healing, an easier burden, and freedom from the problems our toys bring us? If you want an inflatable 15-foot Santa in your front yard, have at it, but remember, those are just toys.

The evidence for Jesus being the Son of God is massive, and you can see it especially in the effect it has had on the lives of men and women for many centuries. Santa is about physical things in a material universe. Jesus is about spiritual things in an eternal universe. Equating Santa Claus and Jesus Christ causes us to deny reality and miss a great answer to the real issues of life.

— John N. Clayton © 2021

Christmas Trivia and Customs

Christmas Trivia and Customs

The Old Farmer’s Almanac for 2021 had some Christmas trivia listing the origins of some customs of Christmas. Here are a few of them:

XMAS – The New Testament was originally written in Greek. The Greek letter for “C” is “Chi,” written like our letter “X” and pronounced “kye.” The equivalent of our letter “R” was written like our lower case “p.” The Greeks represented the name Christ (Christos) using the first two letters, “X” and “p” superimposed. Many have assumed that writing Christmas as “X-mas” is a nod to universalism – that all faiths are equal. Actually, it was just the opposite.

CHRISTMAS TREES – Plants that stayed green all year had a special significance for people who lived in cold winter climates of northern Europe. They put evergreen boughs over windows and doors, believing that living plants would repel illness and evil. The Romans decorated evergreen trees with trinkets and topped the tree with an image of their sun god at the festival of Saturnalia. About 400 years ago, people in Germany used the evergreen as a sign of everlasting life with God.

GIFTS – Some cultures celebrated the winter solstice around December 21, which has the shortest daylight hours. Winter can be a depressing time, and the Romans brightened the worst of winter by giving each other gifts on what they called “calends,” the first day of January. Some early Christians began giving gifts to copy the actions of the “magi” (a Greek word referring to the “wise men” of the Bible).

In Europe, every country had traditions of gift-giving, usually involving children during December. For example, people thought of Santa Claus or Father Christmas on Saint Nicholas Day, December 6. In the Netherlands, children left clogs or shoes out on December 5 (Saint Nicholas Eve) to be filled with presents. In Germany, people thought an angel called the Christkind came on Christmas Eve. In Italy, it was an old witch named Befana who brought gifts. In Spain, children celebrated “Three Kings Day” on January 6.

Since America was a melting pot of various cultures
, these practices and many others came together. As we consider this Christmas trivia in today’s world of conflict, we need a time of peace and harmony to enjoy our friends and neighbors and share God’s love with them. Have a joyous holiday, however you celebrate it.

— John N. Clayton © 2021

Turkeys Don’t Have Enough Dark Meat

Turkeys Don’t Have Enough Dark Meat
Wild Male Turkey

We get some interesting letters and emails. Even though some people may send them with an impure motive, we can always learn something from them. Recently, we received an email about turkeys that brings up an interesting point. Turkey meat is often on the menu for Thanksgiving and Christmas. This person was complaining because, at his house, turkeys don’t have enough dark meat to go around.

The difference between white and dark meat in turkeys and chickens is a lesson in how humans change what God created. If you have ever eaten a wild turkey, you know that it is all dark meat. This is because wild turkeys are very active, running and flying. Having the ability to do these two things means that wild turkeys require more oxygen-carrying blood vessels. With more blood vessels, the meat is darker.

Domestic and factory-raised turkeys don’t use their muscles as much, and with fewer blood vessels, the meat is whiter. The way a turkey is raised affects the nature of the meat. In our area of the country, turkey farms raise large numbers of birds that don’t fly and do very little running. Those are the turkeys you buy at the supermarket, and that will always be the case.

Hawaii has large numbers of chickens in the wild. They fly and run, and if people use them for food, they find very little white meat. In the area we visited in Hawaii, the local people would not eat those free-range chickens because they felt the dark meat was not as good.

I told my questioner that if turkeys don’t have enough dark meat for him, he should bring his shotgun to my house during turkey season. In that way, he could increase the amount of dark meat in his holiday meal. Many of our domestically produced meat products are different from their wild ancestors. God created creatures to survive in the natural world, not to please human preferences.

— John N. Clayton © 2021

The What and Why of JWST

The What and Why of JWST
James Webb Space Telescope with its gold-plated mirrors

If all goes as planned, Christmas Eve will see the launch of the James Webb Space Telescope (JWST or WEBB). It has been a long time in the making with many delays and cost overruns, but it seems that the time has finally arrived. The JWST was supposed to launch in 2007 at the cost of $1 billion. Now it is launching at the end of 2021, and the price has escalated to $10 billion. Let’s examine the what and why of JWST.

First, the what of JWST. The James Webb Space Telescope is a successor to the Hubble Space Telescope (HST or Hubble). It is intended to be a space observatory with capabilities far beyond HST, which was launched in 1990. NASA designed the JWST, and Northrop Grumman built it in California. The European Space Agency will launch it from their launch site in French Guiana, South America.

The why of JWST is that scientists expect it to revolutionize astronomy and expand our knowledge of the universe. Science and technology have made great strides since Hubble was launched and even since astronauts repaired and updated it, most recently in 2009. JWST will observe the universe in infrared light, while HST is limited to visible light. Because galaxies farther away are retreating at increasing speeds, their light shifts toward the red or infrared spectrum. Scientists hope that JWST can observe farther back toward the cosmic creation event known as the big bang. Because of that, astronomers expect to learn more about the formation of stars and galaxies.

Earth-based telescopes must always observe the universe through our atmosphere with particles, pollution, and moisture. That limits their ability to obtain sharp, precise images. Space-based telescopes, like Hubble, eliminate that problem. Webb will give much sharper images with its mirror made of beryllium coated with gold and a diameter more than 2.5 times as wide as Hubble’s.

JWST will locate itself at the Lagrange point where the gravity of Earth and Sun balance each other. That is 930,000 miles (1.5 million km) from Earth. Repairs or upgrades such as those performed on Hubble will not be possible at that distance. That means everything will have to perform flawlessly when the telescope reaches its destination. Deploying the mirror, sun-shield, super-cooling equipment, and telemetry equipment will take a month, which NASA has called “29 days on the edge.”

Another thing that astronomers hope to study with JWST is dark matter, the stuff that’s out there but cannot be seen or detected by any means science has discovered. The way they know dark matter must be there is that it holds the galaxies together. Physics cannot explain why spinning, spiral galaxies, such as the Milky Way, do not fly apart because of centrifugal force. Astronomers hope that JWST’s high-definition images can at least show us where the dark matter is by what they call “gravitational lensing.”

So that is the what and why of JWST. We are excited to see the new images of the universe the James Webb Space Telescope will capture. As we learn about the formation of stars and galaxies, it opens the door to knowledge of God’s handiwork, allowing us to say, “So that’s how God did it!

— Roland Earnst © 2021

Reference: You can find much more about the James Webb Space Telescope at NASA’s fact sheet at THIS LINK.

Benefits and Challenges of Squirrels

Benefits and Challenges of Squirrels

We find it interesting to consider the benefits and challenges of squirrels. Now that most of our trees in this area have shed their leaves, we can see nests that are different from bird nests high in our trees. They are round and are not open on the top. The nest design programmed into the squirrel DNA has the structural integrity to withstand high winds, heavy rain or snow, and even the invasion of most predators.

Squirrels begin by weaving twigs to make a floor or platform for the nest, usually in a fork high in the tree. Next, they place damp leaves or moss on this floor and weave it around the base, making a spherical nest. Then they stuff leaves and twigs into the sphere, leaving an inner cavity which they line with shredded bark and leaves. Squirrels usually complete their construction in the fall, although they may start as early as June. They are typically solitary but may share a nest for warmth in the coldest winter months or for mating and raising their babies.

Squirrels may also take advantage of any shelter they can find. For example, they can use an old woodpecker nest in a hollow tree and line it with moss and leaves. Unfortunately, squirrels will also take advantage of human structures to nest. For example, they may exploit an abandoned car, a hole in a roof, a woodpile, or an unused boat or camper. Being aware of the abilities of squirrels gives us a way to avoid damage or problems they might cause.

Squirrels are intelligent and very athletic animals. Those of us who have bird feeders can tell many stories of how squirrels evaded our best efforts to keep them from eating the birdseed. The main diet of squirrels is nuts and seeds, but they also eat insects, grubs, and beetles. They frequently bury nuts for later use and fail to dig up a percentage of them which then grow into trees. Oak trees planted by squirrels are a significant part of reforestation in northern areas.

As we think about the benefits and challenges of squirrels, remember that they are wild animals that can spread disease and insect bites from fleas, chiggers, and tics. Despite the challenges squirrels present, these small animals are designed to give us more benefits than problems. Enjoy the creatures God has given us to serve a purpose on this planet.

— John N. Clayton © 2021

Joseph is the Unsung Hero of the Birth of Jesus

Joseph is the Unsung Hero of the Birth of Jesus

Mary receives most of the attention as the mother, but Joseph is the unsung hero of the birth of Jesus. Of course, the virgin birth was a miracle, but how would most men have responded to the situation in which Joseph found himself?

Mary and Joseph were Jews following Jewish complex and time-consuming protocol for marriage. In the presence of two witnesses, the groom would make a verbal declaration to the bride accompanied by a gift. The couple was then legally married, and to void the marriage required a divorce. However, the couple did not live together for a year as the bride continued living in her father’s house. When the year ended, the groom would take the bride to his family home, and the couple would live together as husband and wife. A rabbi told me the purpose of this procedure was to make sure the woman was not pregnant. Matthew 25:1-6 describes this wedding custom.

The problem, in this case, is that Mary fails the test. She was showing a baby bump and “found to be with child.” As a result, Jesus would be considered an illegitimate child, and that stigma would be used against him. In John 8:39-41, we see the enemies of Jesus protesting that they were not illegitimate. Joseph is between a rock and a hard place. He loves Mary, but Jewish law urges him to divorce her. Furthermore, the public disclosure of this situation could mean that she could be stoned.

At this point, Joseph has a dream (Matthew 1:20-25) in which an angel tells him not to be afraid to take Mary as his wife. Afraid of what? Afraid of breaking the Jewish law. I think most men would have assumed it was something they ate and would not have been willing to subject themselves to the ridicule and abuse that would undoubtedly come from the situation. Interestingly, the angel addresses Joseph as “Joseph, son of David.” This is the only time that title is given to anyone in the New Testament except Jesus himself. Joseph is the unsung hero of the birth of Jesus.

After the birth of Jesus, Joseph has another dream in which an angel tells him to take Mary and Jesus to Egypt. He immediately does it in the middle of the night (Matthew 2:13-14). This poor carpenter is told to go to a foreign country with no support. (Perhaps this is where the gift of gold from the magi came in handy.) Joseph is a man of incredible faith and courage. He ends up in Nazareth because of another dream and fades into the background as Jesus and Mary take over the historical narrative.

Joseph is the unsung hero of the birth of Jesus because he sets an example for us all. His love for Mary, his obedience to God’s commands and leadership, and his willingness to serve sacrificially are frequently overlooked. He teaches us that we can serve God in many ways. Joseph’s humility, servant attitude, and obedience set a standard for us to follow.

— John N. Clayton © 2021

Our Essential Moon and Life on Earth

Our Essential Moon and Life on Earth

For most people, our Moon is just a light at night. The fact is that our essential moon is part of Earth’s fitness for life. Any change in the size, distance, or obit of the Moon would be catastrophic for life on Earth.

Having just one moon of significant size is a very unusual situation. Venus has no moons, and the two tiny moons of Mars are apparently captured asteroids. Jupiter, Saturn, and Uranus each have multiple moons, many of which are of significant size. However, a single large moon is unique to planet Earth.

So what does our essential Moon do for us? Because of its size, it has a significant gravitational pull on the Earth. That pull is strong enough to cause our planet to flex as the Moon orbits it. That creates a disturbance in geologic activity on Earth when the Moon is over an area of unstable rock.

The Moon’s pull on Earth’s waters is more significant. The Moon’s pull stirs the oceans much like a person might stir a large saucepan of soup. Our Moon causes many ocean currents and tides, even in large lakes. Ocean currents not only move nutrients around but transport heat as well. For example, the Gulf Stream is critical to marine life along the east coast of North America and controls temperatures along the entire coast.

The Moon’s gravitational pull is closely related to its mass. Therefore, a larger moon would cause massive flooding along the edges of continents. If it were smaller, the tides and currents would not be large enough to clean the estuaries or warm the landmasses, and many marine lifeforms would not survive.

If we had more than one moon, they would affect each other. There are rock tides causing moonquakes on the Moon due to the pull of Earth’s gravity. A second moon would amplify this effect, and if the two moons collided, the fragments would threaten life on Earth. Every total solar eclipse reminds us how precise the Moon’s size is. It can exactly cover our view of the Sun, allowing us to see and study the Sun’s corona.

Most of us overlook how our essential Moon’s size, mass, distance, and orbit shape seem to be carefully designed. Attributing that precision to blind chance requires faith as great as attributing life to chance. We would suggest that the Creator used his wisdom, described beautifully in Proverbs 8:1-5 and 22-32, to design an Earth/Moon system that allows life to exist and prosper on planet Earth.

— John N. Clayton © 2021

Reference: Smithsonian magazine, December 2021, page 88.