Tag: Roland Earnst

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Biological Clock Circadian Rhythm

Biological Clock Circadian Rhythm
Three scientists have just received Nobel Prize in medicine for proving scientifically something we knew all along. The scientists share the 1.1 million dollar prize for proving that we really do have a biological clock. The fact that you are alert at certain times and sleepy at others is not just in your head.

In 1984 they sequenced the “period gene” which others had discovered in fruit flies in 1971. The gene controls the circadian rhythm which regulates the daily sleep and wake patterns of all creatures, including humans. Following up on that work, in 1998 they found that the gene encodes a protein called PER. The PER levels build up at night and drop during the day. This discovery enables scientists to understand the molecular makeup of the biological clock.

Learning more about our biological clock leads to some useful understandings, including when is the best time to take certain medications. It also relates to shift work, jet-lag, and school classroom times. The understanding of circadian rhythms can be incorporated into practical medicine and the body’s production of melatonin, a hormone that prepares us for sleep.

A group of sleep researchers a few years ago did some research on biological clocks. They sent a group of volunteers on a tent-camping trip to the Colorado Rockies. They found that people who work indoors where they are not exposed to outdoor light may need to have their biological clocks reset. When people are indoors during the day and exposed to electric lights at night, their clock can become out of sync. Exposure to strong artificial light at night can delay our master clock. That delays the production of melatonin at night, and then the melatonin level is still high in the morning when it’s time to get up.

The campers were only allowed to use campfires for light and no cellphones or flashlights. After spending a week away from artificial light and exposed to more daylight, the volunteers fell asleep earlier and woke up earlier. Their melatonin levels rose earlier in the evening and dropped earlier in the morning.

The recommendation of the researchers was to start your day with a morning walk and when you have to be inside open the shades to get exposure to some sunlight. You may find that you will sleep better and wake up more refreshed.

“And God said, ‘Let there be lights in the expanse of the sky to separate the day from the night’…God set them in the expanse of the sky to give light on the earth, to govern the day and the night, and to separate light from darkness. And God saw that it was good” (Genesis 1:14, 17).
–Roland Earnst © 2017

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Artificial Life Synthetic Biology

Artificial Life

I just ran across an Associated Press news article in my files. The headline reads, “Scientists Believe Artificial Life Will Be Possible in 3 to 10 Years.” The article is dated August 20, 2007.

The report deals with a new scientific discipline known as synthetic biology. The goal is to create life in the laboratory. Two of the pioneers in this field are Jack Szostak and Craig Venter. Szostak’s team has taken the bottom-up approach to build artificial life-forms. They seek to assemble the biomolecular building blocks step-by-step until they have a living cell. Venter’s team takes the top-down approach. They try to re-engineer existing life-forms by changing the DNA to create novel forms of life. Both teams have made progress over the last ten years, but neither has achieved the ultimate goal.

The AP article says there are three major hurdles to creating artificial life. First, you need a container or cell membrane. It serves as a protective wall to keep the materials required for life inside while keeping the harmful molecules out. Living cells must have that. Secondly, you need a genetic system that controls all of the cell functions. This system has to allow the cell to mutate in response to the environment and, very importantly, to reproduce. The third essential is a system of metabolism. The cell must be able to take raw materials from the environment and convert them into energy to power the cell.

Those three hurdles are still challenging the scientists. In time, scientists may jump the barriers and create fully-synthetic artificial life. In doing so, what will they have proven? Will they have shown that life arises spontaneously from non-life? No. They will have proven that great intelligence under carefully controlled conditions can turn non-living matter into life-forms. They will have shown that life is not an accident, but the creation of an intelligent being. That is what the Bible has said for thousands of years.

Even when those scientists manage to create a living cell, they will NOT have created it from nothing. They will be using the materials (and intelligence) that God has given us. It reminds me of the old story about a scientist who challenged God, saying that is was no big deal to create a man from the dust of the ground. God said, “Go ahead and do it.” The scientist grabbed up a handful of dust, and God interrupted him, saying, “Wait a minute! Make your own dust.”

–Roland Earnst © 2017

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More Viewers than the Super Bowl

More Viewers than the Super Bowl
The “Great American Eclipse” of 2017 had more viewers than the Super Bowl. According to Nielson ratings, the 2017 Super Bowl had 111 million viewers on TV. About 215 million adults, or 88 percent of the United States adult population, watched the eclipse. That total includes those who watched it live, plus TV and internet viewers. Of course, many children watched it too.

The University of Michigan and NASA compiled the viewing statistics with a joint survey. Sixty-one million adults in the United States watched the eclipse on TV, computers, tablets, or phones. Unlike the Super Bowl the vast majority, about 154 million, watched it directly with the aid of viewing glasses or pinhole cameras. About 20 million traveled to locations where they could see the totality. I can testify that the roads in southern Illinois were crowded with travelers. After the eclipse, it took 3 hours to drive 40 miles. You can watch a speeded-up view of the eclipse on this video. Be sure to turn the sound up so that you can hear the reaction of the people around me during the eclipse.

In addition to a large viewership, the satisfaction rate was high. Seven out of ten said they were not disappointed. (Probably about half of the Super Bowl crowd was disappointed because their team lost.) If you listen to the video that I edited, you can tell that the crowd on the bluff overlooking the Ohio River was not disappointed.

We are pleased that there was this much interest in a science-related event. God’s creation can draw more viewers than the Super Bowl.

–Roland Earnst © 2017

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Religious Freedom Threatened

Religious Freedom Threatened
We have recently posted about some believers who have had their religious freedom threatened merely because they want to live out their faith. Government agencies at various levels are attacking believers with fines, jail time, or bankruptcy because they will not participate in something which is against their Christian convictions. Wedding photographers, cake artists, and owners of flower shops and wedding venues have been charged with discrimination. Their only crime is not wanting to participate in same-sex wedding ceremonies because they believe it violates God’s plan and design for marriage.

Now government punishment is being carried out against Christian farmers because they expressed their belief in the God’s design and sanctity of marriage. Steve and Bridget Tennes and their five children live on a farm 22 miles from East Lansing, Michigan. For the past seven years they have been selling their produce at the East Lansing Farmer’s Market. The city has adopted a policy that bars those who believe in traditional marriage from selling produce in the market. Steve Tennes posted his Christian view of marriage on Facebook. When the administration of the East Lansing Farmer’s Market learned about that, they said the Tennes farm, known as Country Mill, would no longer be allowed to sell.

Country Mill was selling the only organic apples available in the East Lansing Farmer’s Market, and those sales are a significant part of the income for the Tennes family. Steve Tennes filed a federal lawsuit against the city, and a federal district judge ordered that he should be allowed to return to the farmer’s market until the case is settled. Tennes does not want to see Americans’ religious freedom threatened. He said, “This isn’t just about our ability to sell at the farmer’s market. It’s really about every American’s right to make a living and not have to worry about being punished by the government.”

In the meantime, the U.S. Justice Department has filed a brief with the U.S. Supreme Court in one of the cases we reported on earlier. That is the case of Jack Phillips, a Christian cake artist who will not participate in a same-sex marriage ceremony by designing a cake for it. The Justice Department is siding with Phillips in this case. It will be interesting to see how the Supreme Court will decide. (See update.) There are Christians who just want to live out their faith and not be forced to participate in something they believe is in violation of God’s commands. The Jack Phillips case could have repercussions for many others.

We can’t ignore the fact that religious freedom threatened just because it hasn’t directly threatened us. Believers should not be forced to do something that violates their faith. That sounds too much like the situation the early Christians faced in ancient Rome.
–Roland Earnst © 2017

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Cassini Exceeded Expectations

Saturn with its rings and some of its moons.Cassini Exceeded Expectations

On the morning of September 15, 2017, Cassini ended its life in fiery destruction. Cassini was a space probe orbiting and studying Saturn, and by all measures, Cassini exceeded expectations.

NASA, the European Space Agency, and the Italian Space Agency worked together on the Cassini-Huygens space exploration project. The mission was to study Saturn along with its moons and rings. NASA launched the spacecraft in 1997, and it arrived near Saturn and went into orbit around that planet in 2004.

The Huygens (pronounced hoy-guns) lander module, provided by the ESA, separated from the Cassini probe and landed on Saturn’s largest moon, Titan, in 2005. The parachute landing was successful, and the probe sent out data for about 90 minutes. In that brief time, scientists learned much about the surface of that distant moon. Viewed from Titan’s surface, the Sun appeared about the size and brightness of a car headlight 150 meters away. The Huygens probe took pictures and told us that Titan’s surface is dotted with rivers, lakes, and oceans made of methane and ethane. It also has dunes up to 300 feet (91 meters) tall.

Meanwhile, the Cassini probe continued to orbit Saturn and send back amazing and beautiful pictures of its rings and moons for 13 years. Cassini helped us to learn more about the moons of Saturn. The planet has at least 53 moons and possibly eight more. We learned that the moon Enceladus is covered with a liquid water ocean with a surface layer of ice 19 to 25 miles (30 to 40 km) thick. Geysers of water erupt from cracks in the ice. The rings of Saturn are a constantly changing collection of ice particles and small rocks. Saturn has hurricane-like storms at both poles and a hexagon-shaped jet stream at the north pole. How long is a day on Saturn? That’s hard to determine because it is a gas planet and not all parts of it move at the same speed. Scientists estimate a little more than 10 hours.

Cassini exceeded expectations by surviving seven years of travel to Saturn plus 13 years orbiting the planet. As it ran out of fuel, scientists sent it hurtling into Saturn’s atmosphere to burn up so it could not contaminate any of Saturn’s moons by crashing into them.

We are fascinated by the Cassini photos and scientists will continue to study them for years. The picture we posted shows a Cassini view of Saturn and its rings with a bright spot visible below the rings. That spot is the planet where we live. As we look at the hostile environment of space and the other planets, we realize how incredible Earth is. God has given us a place with everything we need for life. You might say that compared to any other place in the universe, Earth exceeds expectations.
–Roland Earnst © 2017

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It’s Good to be Blue

It's Good to Be Blue Begonia Leaf
It’s a plant that uses quantum mechanics to make maximum use of minimum light, and in doing so, it displays blue leaves. The explanation of why blue begonias are blue is another demonstration of the incredible design built into all living things.

The tropical begonia (Begonia pavonina) that grows in Malaysia has leaves that are iridescent blue. The blue does not come from pigmentation, but rather from structural color, a technique that gives beautiful color to some birds, Butterflies, and beetles. In the leaves of all kinds of plants there are cellular capsules called chloroplasts, and inside those structures is a green substance known as chlorophyll. The chloroplasts are the organic machines that take energy from sunlight and chemicals from the soil to make organic energy that allows the plant grow.

Sunlight is a mixture of light at various energy levels, but green is the highest energy of sunlight reaching the surface of the Earth. Since the chlorophyll pigment reflects green light, the plant is protected from being damaged by the high-energy sunlight. We see the reflected green light, so the leaves look green.

Blue begonias live on the floor of dense rain forests where the forest canopy restricts the light. Inside the chloroplasts of these begonias, there are nano-structures called thylakoids where the energy conversion takes place. Other plants have thylakoids, but they are arranged differently in the begonia. Scientists using an electron microscope discovered that the thylakoids are aligned in a way that they act like crystals. In other plants, they are haphazard in their arrangement. Light bounces around within the thylakoids causing interference at certain wavelengths and reflecting the iridescent blue. The light is slowed down in this process so the plant can use more of the high-energy green and red light while reflecting the blue. These plants are using principles of quantum mechanics which scientists only began to learn about in the twentieth century.

The result is that the blue begonias get the nutrition they need to survive in a location with little sunlight, and we see the leaves as a beautiful blue. One science website described the alignment of the thylakoids in this way: “…they have an amazingly regular structure, which is obviously planned.” Here is the way another science website described the unique way these begonias efficiently use the limited sunshine they receive: “It seems selective evolution led the plants to engineer a nanoscale light-trapping structure, the likes we’ve only seen in miniature lasers and other photonic structures made by humans…”

We believe that planning requires a planner and engineering requires an engineer. As scientists study even the simplest forms of life, they find more and more evidence that God is ingenious in all He creates.

–John N. Clayton and Roland Earnst © 2017

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Saharan Silver Ants

Saharan Silver Ants
The survival of living things in extreme conditions is always fascinating. There are places on Earth, such as the Sahara Desert, where the temperature on the ground can soar to 120 degrees Fahrenheit. Even in that extreme heat there are living things functioning very well in conditions that would be lethal to most forms of life.

Extreme survival is a way of life for the Saharan silver ants (Cataglyphis bombycina). The predators of these ants are desert lizards that retreat into their burrows in the heat of the day. Some of the ants keep watch to let the others know when the lizards are gone. Then the ant colony makes its food-search expedition. They come out into the full Sun and intense heat to scavenge animal carcasses. The picture shows them devouring an engorged camel tick.

The question is, “How do they survive the heat?” They have longer legs than most ants, and that keeps their bodies farther from the hot sand. They also travel across the sand at high speed (2.3 feet or 0.7 meters per second) using only four of their six legs to keep fewer feet on the ground. Also, their bodies produce heat-shock proteins that help their cells cope with the stress of the high temperature. Many animals produce heat-shock proteins, but not until they are exposed to extreme heat. The Saharan silver ants are programmed to produce those proteins before heat exposure to prepare them for what’s ahead.

Even with those adaptations, they are still exposed to the direct rays of the Sun. Scientists used electron microscopes to find the secret of the Saharan silver ant’s survival. The ants are covered with microscopic hairs that are not round or oval in cross-section like most hairs. They have a triangle shape to act as prisms. This shape reflects both the visible and infrared (heat) energy from the Sun away from their bodies. Because of these tiny prisms, the ants display a metallic shine. They look like metallic beads rolling quickly over the desert sand. No other desert creature has this form of reflection. Saharan silver ants are among the most heat-resistant creatures in the world.

Like many things in nature, engineers are looking into how we can imitate the prism method of these ants to protect humans from the dangers of extreme heat. Designing something that can reflect the heat this efficiently requires a deep understanding of optics and the nature of light and heat energy. The wisdom of the Creator shines brightly in the reflected light coming from the Saharan silver ants.
–John N. Clayton and Roland Earnst © 2017

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Nursing Orangutans and Evolution

Nursing Orangutans
As scientists study different animals in their natural environment, they frequently learn things that complicate accepted pictures of animal history. A recent series of studies of nursing orangutans in Borneo and Sumatra has shown that weaning doesn’t occur in these animals until they are more than eight years old. That is a record lactation period for any wild animal.

Determining the length of nursing for orangutans has been difficult for various reasons. For one thing, the nursing takes place high in the trees, so scientists have difficulty observing. Add to that the fact that these animals are hairy, so it becomes difficult to see what is going on. Some have suggested that the babies are just cuddling.

Researchers finally settled the question by studying orangutan teeth. Studies of the layers of material containing barium in the teeth of the babies indicate that they really are feeding. Museums have collections of orangutan teeth from years ago when these animals were not considered to be endangered and were often killed by collectors. Calcium and barium from the mother’s body go into building the nursing infant’s teeth. Primate teeth are built up with a microscopic layer each day. By examining the layers, scientists can tell when the infant orangutan stopped nursing because there is a greater concentration of barium in the nursing layers. Examining teeth from orangutans at different ages, the scientists determined that nursing can continue through age eight.

Some evolutionary theories have difficulty with these very long lactating periods. Not only is the female not receptive to males during that eight years, but she must continue to produce milk. In milk production, the mother is literally dissolving some of her body to provide nourishment for the young. These two factors seem to be counter to evolutionary models for survival. These new discoveries concerning nursing orangutans may cause some rethinking concerning theories of primate evolution.
–John N. Clayton and Roland Earnst

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Business Owner’s Religious Freedom

Business Owner's Religious Freedom
One of the most critical issues of this decade in America is a business owner’s religious freedom. If you own a business, do you have a right to refuse to perform a service which violates your religious faith? Here are some examples of Christian business owners being told by the government that they must provide a service that they find morally objectionable.

Barronelle Stutzman owns Arlene’s Flowers in Richland, Washington. She declined to design a flower arrangement for a same-sex wedding. The Washington Attorney General and the ACLU brought suit against not only her business but her personally. She could lose everything because of taking a stand based on her Christian faith. This case is being appealed to the United States Supreme Court.

Blaine Adamson owner of promotional printing company Hands On Originals in Kentucky turned down a job to print promotional t-shirts for a gay pride festival. He had refused to print other materials that he considered to be morally objectionable. The local human rights commission charged him with sexual orientation discrimination saying that he must print the shirts. In 2015 a Kentucky circuit court found in favor of Adamson, and that decision was upheld in 2017 by the Kentucky Court of Appeals. Now the Kentucky Supreme Court will decide whether to hear the case.

Masterpiece Cake Shop vs. Colorado Civil Rights Commission is one of a dozen similar cases where a private business owner of a bakery wishes not to produce something that violates their religious convictions. In this case, Jack Phillips did not want to design a cake for a same sex wedding. The state is threatening him with a fine and jail time.

It is not only Christian printers, flower shops, and cake decorators that are being forced by the government to provide services that violate their faith. Christian wedding photographers and videographers also face legal challenges. In the Minnesota case of Telescope Media Group vs. Lindsey, Carl and Angel Larsen have a video business. They produce videos that teach Christian values and educate couples about God’s plan for marriage. They are being threatened with a $25,000 fine and 90 days in jail because they do not make videos of same sex marriages as well.

These cases bring to mind many questions about a business owner’s religious freedom. Can a printer refuse to print pornography because of the moral issues involved, even if it is legal? Should a black business owner be required to provide materials promoting a KKK rally? Should a Jewish business be required to provide facilities for a neo-Nazi rally? Should a Christian printer be required to print materials promoting atheism? Does a business owner’s religious freedom end when the doors open for business? To turn the question around, should a business owner who is a gay rights advocate be required to produce material saying that homosexual activity is immoral?

We have commented before about the Alliance Defending Freedom (ADF) and their efforts to protect religious freedom and Christian values. In Acts 4:18-20 we read about the authorities telling Peter and John “not to speak or teach at all in the name of Jesus.” They responded with, “Judge for yourselves whether it is right in God’s sight to obey you rather than God. For we cannot help speaking about what we have seen and heard.”
–John N. Clayton and Roland Earnst © 2017

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Next Total Solar Eclipse 2024

The Next Total Solar Eclipse
The total solar eclipse of 2017 is now history. If you were in the United States, you probably saw at least a partial eclipse. If you missed the totality, you will have another chance in about seven years. The next total solar eclipse visible in North America will be on April 8, 2024.

The eclipse of 2024 will travel from south to north. After traveling across Mexico, it will cross the US border in Texas. It will travel northeast to follow the length of Lake Erie. Then it will skirt southern Canada and northern New England. It will leave the United States when it crosses Maine before crossing New Brunswick and Newfoundland and disappearing in the North Atlantic. Major US cities within the band of totality will include Dallas/Fort Worth, Indianapolis, Cleveland, and Buffalo. Although the 2017 eclipse was total for only about 2.5 minutes, the 2024 eclipse will last about 4 minutes in totality. You can get more details about it here.

However, the eclipse of 2024 will not be the next total solar eclipse in the world. Before 2024 there will be other total solar eclipses and partial eclipses in other parts of the world. You can find information about upcoming solar eclipses here and here. You will see the dates and times for solar eclipses up to the year 3000!

How can we predict solar eclipses with such precision, even hundreds of years in advance? The reason is that God has designed a solar system with stability and precision. Those factors also make possible the abundant life on this planet. Design, not chance is evident in the wisdom of creation.
–Roland Earnst ©