science Archives

February 22, 2023February 21, 2023

Sleep as a Great Time Waster

As a teenager, it was frustrating that I was supposed to spend a third of my time asleep. I thought of sleep as a great time waster when there were so many things I wanted to do. I thought I could accomplish much more by staying awake.

The truth is that humans need sleep, and so do all animals. Birds, fish, and even insects need periods of dormancy to survive. Even plants need “sleep.” Sunlight empowers photosynthesis in plants to produce the nutrients they need for survival and growth. Therefore, it seems that plants should grow faster if they had sunlight 24 hours a day. Not so. If you set up an indoor garden with artificial lights, you will find that the plants need dark periods. You can even change the “seasons” for the plants by varying the percentage of darkness and light.

Instead of seeing sleep as a great time waster, we know that it is a vital biological process essential for the survival and well-being of living things. Sleep is necessary to maintain good health by restoring and repairing the body’s tissues and organs. During sleep, the body produces hormones that help repair damaged tissues and build new ones. Sleep plays a critical role in the immune system, as it helps the body produce cytokines, a type of protein required to fight infection and inflammation.

Sleep is also crucial for the regulation of metabolic processes. Working with our circadian rhythm, sleep helps to regulate appetite and energy balance. Sleep deprivation can lead to increased hunger and decreased production of hormones that regulate appetite, such as leptin and ghrelin. This can lead to weight gain and obesity, increasing the risk of developing several chronic health conditions.

Sleep is essential for more than just physical well-being. During sleep, our brain processes and consolidates memories and data acquired during awake times. The lack of sleep can impair attention, memory, decision-making, and emotions. Sleep aids in the consolidation of learning and the formation of new memories. During sleep, the brain replays and consolidates memories from the previous day, helping to strengthen and make them more resistant to forgetting.

Now that I am old, I appreciate sleep much more than I did as a teenager. I no longer see sleep as a great time waster but as a blessing from God. I have found that some of my best ideas come to me at night. I can wake up with a new idea or a fresh way of looking at things. Sleep has cleared away the fog in my mind so I can see things I had overlooked.

I am also thankful that God doesn’t sleep. We can sleep because He is our protector 24/7/365. Psalms 121:3b-4 says, “He who keeps you will not slumber. Behold, He who keeps Israel shall neither slumber nor sleep.” So when our melatonin level increases and our circadian clock tells us it’s time to sleep, we can rest knowing that God is still at work keeping the world going. “The Lord’s love never ends; his mercies never stop. They are new every morning” (Lamentations 3:22-23 NCV).

February 20, 2023February 18, 2023

The Gravitational Constant and Earth’s Mass

“How much does planet Earth weigh?” We can’t put the planet on a scale, and the correct question is, “What is Earth’s Mass?” The scientific literature tells us Earth’s mass is six ronnagrams. That is six followed by 27 zeros (6,000,000,000,000,000,000,000,000,000 g). Newton’s law of gravitation is expressed in the equation F=G(mm’/x²). The m and m’ are the masses of two objects, x is how far they are from each other, and G is the gravitational constant which makes the equation work. The value of G is 6.67430 x 10^-11, that is .0000000000667430.

Any two objects with mass will attract each other. For example, you and the Earth are attracting each other, and you are attracted to the person sitting next to you, such as your spouse or significant other. So why don’t you feel that attraction to each other? (Gravitationally, that is.) If you put your mass and the other person’s mass into that equation, you will find that the force is extremely small. However, if you were in outer space and floating isolated from any other mass, you and that person would be drawn together.

So what is the point? This design of the gravitational constant is an amazing display of God’s wisdom and intelligence. Earth’s mass is so large that you can feel its attraction for you. That prevents you from flying off into space while allowing all of life to have mobility on the planet’s surface. The attraction of gravity on all objects in space pulls them together, with the force depending on the mass of the objects. The matter clumps into meteoroids, asteroids, and comets if the mass is relatively small. Greater mass results in stars and planets, with gravity pulling them into spherical shapes. Gravity also keeps solar systems and galaxies from flying apart. The gravitational constant acting on mass allows the cleansing of debris from space and the continuing production of new astronomical bodies.

The value of the gravitational constant (G) allows the creation of the universe, the Milky Way galaxy, our solar system, and planet Earth. It is just one of many mathematical constants that must be just right to allow matter and life to exist. How did such numbers get chosen? Is this some cosmological accident, or is it the product of intelligence?

Atheists respond by suggesting there are an infinite number of universes with different constants. We just happen to be in the one that got everything right. Unfortunately, there is no way to test this multiverse theory scientifically. It is more like a religious idea that has no purpose except to avoid believing in the existence of an intelligent Creator.

The gravitational constant is only one of many constants that must be fine-tuned for the existence of life in any universe. We have no reason to believe there are other universes, but if there are, they would also have to be created. We believe God created our universe for a purpose. The Bible gives a purpose for human life and states clearly that the creation described in Genesis 1:1 was by a God who created with Wisdom, as we read in Proverbs 8:1, 22 -31.

February 18, 2023February 15, 2023

The Universe Has a Purpose

“In a certain sense, you might say that the universe has a purpose, but I’m not sure what the purpose is. I don’t believe in any religion I’ve seen. So in that sense, I am an atheist.” – Roger Penrose

That statement by the British mathematician, mathematical physicist, philosopher of science, and Nobel Laureate in physics Roger Penrose appeared in an interview in New Scientist magazine. Penrose has won many awards and honors for his brilliant achievements. One of his endeavors has been to explore the origin of consciousness. He believes that the known laws of physics cannot explain the phenomenon of consciousness. The first of his three books on the subject was The Emperor’s New Mind (1989). Since then, he has worked with an anesthesiologist to develop a view of consciousness that he calls “orchestrated objective reduction” (Orch OR).

In the New Scientist interview, Penrose said, “whatever consciousness is, it must be beyond computable physics.” Penrose doesn’t think that consciousness is accidental. He said, “I think the presence of consciousness, if I can put it like that, is not an accident.”

If consciousness is not an accident, then it must be intentional. How can something be intentional without a mind that intends for it to be? How can it have a purpose without a purpose giver? Penrose stated in the interview that “nobody knows where the fundamental constants of nature come from.” He suggests that if those fundamental constants didn’t have the specific values they have, then the chemistry of life could not exist, and we wouldn’t be here. If those constants have the precise values for life, how could that happen without a conscious Designer?

Roger Penrose is a man whom God has gifted with a brilliant mind that, even at age 91, is still pursuing an understanding of the universe and consciousness. He clearly states that he does not believe the universe and consciousness are accidents, but he is seeking to explain them by quantum mechanics. However, he admits, “I would say that there is something going on that might resonate with a religious perspective.”

We agree with Penrose that the universe has a purpose. Purpose in the universe and purpose in consciousness can best be explained by a conscious Mind outside of the universe and beyond the reach of scientific analysis. This is not a “god-of-the-gaps” concept but logically seeking the best explanation. Following through with that understanding means that you, like everyone else, also have a purpose.

Reference: New Scientist magazine November 14, 2022

February 17, 2023February 17, 2023

The Most Mysterious Number in Physics

Many physical constants determine the structure of the universe. All of them have units or dimensions, such as the speed of light (c) or the gravity constant (G). That is, all of them except one. That one is the fine-structure constant represented by the Greek letter alpha (α). The fine-structure constant seems to be a random number with no units or dimensions, but it keeps showing up in physics calculations. It has been described as the most mysterious number in physics. American theoretical physicist Richard Feynman called it “a magic number that comes to us with no understanding by humans.”

Recognition of the fine-structure constant originated with German theoretical physicist Arnold Sommerfeld in 1916. Chemists can identify different elements in the lab by the spectral lines they emit or absorb when their electrons change energy levels. Astronomers analyze the spectral lines of stars to determine what elements they contain. Some spectral lines are split, showing a fine structure. To explain this, Sommerfeld introduced a new constant into his equations and called it the fine-structure constant. It has no units like the speed of light or other constants. It is just a number – a ratio.

The fine-structure constant shows the strength of the interaction between electrons and photons. It also shows up in many other ratios in physics. The value is approximately 0.007,297,352,569 or 1/137. Physicists consider it mysterious because they don’t know where it came from or why it has that value. They can’t explain why it exists at all. But if you are not a physicist, why should you care about the most mysterious number in physics?

If the fine-structure constant had any other value, life as we know it would not be possible. If you changed that number, you would change the universe. A different value for the fine-structure constant would change the size of atoms and alter chemistry and nuclear reactions. No stable matter, no life, and no intelligent beings would exist. We wouldn’t be here.

Richard Feynman wrote that “all good theoretical physicists put this number up on their wall and worry about it.” Apparently, they worry about where it came from and why it is what it is. Feynman further wrote, “You might say the ‘hand of God’ wrote that number, and ‘we don’t know how He pushed His pencil.”

Feynman was joking about the most mysterious number in physics, but we think it was written by the “hand of God.” We also believe “He pushed His pencil” so that He could create humans for a purpose. More on that tomorrow.

February 16, 2023February 14, 2023

The War Between Science and Theology

Yesterday we talked about how Eratosthenes accurately computed Earth’s circumference around 240 B.C. We also said that it is a myth that people in the middle ages and even in the time of Christopher Columbus believed that the world was flat. That myth was based on a fiction story about Columbus written by Washington Irving in 1828. The myth was reinforced by a scientist and a historian who initiated a war between science and theology.

Scientist and philosopher John William Draper wrote History of the Conflict Between Religion and Science in 1874. He claimed that the Church was hostile to the advancement of science. He claimed that the early Church fathers believed that scripture said the Earth is flat. That concept of a war between science and theology was further advanced and popularized by historian Andrew Dickson White in his book The Warfare of Science (1876). Darwin had published his work On the Origin of Species in 1859, and the war was on.

Creating a war between science and faith seems to have been a goal of Draper and White and many advocates of Darwin’s theory, such as Thomas Henry Huxley. The lack of scholarship on the part of Draper and White has been demonstrated. Meanwhile, Darwin’s theory has had to be revised to what is now known as Neo-Darwinism. Darwin thought that living cells were just globs of protoplasm. He had no idea that they are more like cities with factories, machines, and transportation systems operating on complex information contained in DNA. As biological science advances, Darwinian naturalism faces more challenges.

Historians of science David Lindberg and Ronald Numbers wrote in Beyond War and Peace: A Reappraisal of the Encounter between Christianity and Science (1986) that “there was scarcely a Christian scholar of the Middle Ages who did not acknowledge [Earth’s] sphericity and even know its approximate circumference.” What many writers, including Draper and White, had overlooked was that the leading early scientists were believers in God. In fact, their faith motivated their desire to know God through His creation.

We can still know God through His creation today. So the idea of a war between science and theology is not accurate. Science and faith are friends. “For his invisible attributes, that is, his eternal power and divine nature, have been clearly seen since the creation of the world being understood through what he has made” (Romans 1:20 CSB).

February 15, 2023February 14, 2023

To Accurately Calculate Earth’s Circumference

How was a man living over 2,000 years ago able to accurately calculate Earth’s circumference? How could he even know that Earth is spherical? How can some people today believe that our planet is flat when everyone has seen pictures of Earth taken by satellites in space?

Those may be too many questions at once. Let’s try looking at them one at a time. The first man to accurately calculate Earth’s circumference in about 240 B.C. was a Greek polymath named Eratosthenes. He was a brilliant mathematician, geographer, astronomer, music theorist, and poet, and his calculations were amazingly accurate.

A myth originated from a fiction work by nineteenth-century American author Washington Irving and other authors. Irving wrote a less-than-accurate “biography” of Christopher Columbus. In it, the Spanish authorities questioned Columbus’ plan to sail west to Asia by going east because they thought the ships would drop off the edge of a flat Earth. The truth is that European scholars at that time knew that our planet is a sphere. In fact, Columbus did too, but he believed that it was 25% smaller than it actually is. He should have paid more attention to Eratosthenes.

Ancient Greek scholars, as early as the fifth century B.C., recognized the spherical nature of the planet based on observations. (We have talked about that before.) So Eratosthenes set out to accurately calculate Earth’s circumference. Let’s look at a simplified description of how he did it.

Eratosthenes was the librarian of the famous library of Alexandria in Egypt. Syrene was a city 5,000 stadia south in what is now Aswan, Egypt. (5000 stadia was approximately 800 km or 497 miles.) At noon on the summer solstice, Eratosthenes placed a rod vertically into the ground in Alexandria. At the same time, his assistant had placed a rod of the same length at Syrene. Since Syrene is very close to the Tropic of Cancer, where the Sun is directly overhead at noon on the solstice, the rod did not leave a shadow. In Alexandria, the rod produced a shadow of 7 degrees, which is 1/50 of the circumference of a circle. That means Earth’s circumference would be 50 times the distance from Alexandria to Syrene. Multiplying 50 times 5,000 stadia results in 250,000 stadia for Earth’s circumference. Depending on exactly how long a stadion was, that measurement is accurate to within -2.4% to +0.8%.

That answers the first two questions, but what about people today who believe the Earth is flat when there is plenty of evidence otherwise? That is an example of people believing what they want to believe and refusing to accept the evidence. There is a connection here to the so-called war between science and faith, and it relates to what we read in Romans 1:20. More on that tomorrow.

February 14, 2023February 13, 2023

Elephants and Ecosystems

Yesterday we talked about ecosystems, what they are, and why they are essential. If you looked at yesterday’s picture, you saw that carbon sequestration was among the “services” provided by ecosystems. Today, there is much concern about atmospheric carbon (carbon dioxide and methane) increasing the “greenhouse effect” and causing global warming. That makes capturing carbon an essential service of ecosystems to protect our survival. One vital area involves African elephants and ecosystems.

Elephants are known as megaherbivores because of their size and the fact that they eat plants. New research has shown that elephants have a “profound” effect on forest ecosystems. We have mentioned before that beavers shape their environment to create ecosystems that support many other life forms. Researchers from Sweden, France, and the United States confirm that elephants are also “ecosystem engineers” that “significantly influence the structure and functioning of ecosystems” such as tropical rainforests in Africa.

The positive connection between elephants and ecosystems involves two aspects of elephant behavior. First, African forest elephants prefer to eat the leaves of trees with low wood density. This is because those leaves contain more protein and less fiber than the ones with high wood density. Secondly, elephants prefer to eat fruit from trees with higher wood density. By eating those fruits, the elephants disperse the seeds of the trees that sequester the most carbon.

Elephants spread more seeds of more plant species than any other animal. The elephant’s diet enables the survival and spread of the trees that store more carbon, keeping it out of the atmosphere. At the same time, elephants reduce overcrowding by the lower-density plants, allowing the larger trees to grow. This balance of elephants and ecosystems helps to protect the planet from excess carbon in the atmosphere.

The study concludes that elephant conservation will significantly affect global climate by controlling the amount of atmospheric carbon. God has designed a worldwide system of many ecosystems that make Earth suitable for advanced life to thrive. Our job is to protect the blessings God has given us to enjoy. Who doesn’t enjoy watching elephants?

Reference: Proceedings of the National Academy of Sciences

February 13, 2023February 13, 2023

Ecosystem Design and Stewardship

An ecosystem is a complex network of living and non-living things interacting with one another in a specific environment. It includes all the living organisms, such as plants, animals, and microorganisms, as well as the non-living components, such as air, water, soil, and climate. These living components are adapted to the non-living components in an interdependent system, with each relying on the others. We see ecosystem design everywhere we look on planet Earth.

Ecosystems exist in water environments, from ponds to streams to rivers to the oceans. They exist on land in forests, mountains, and deserts. They vary from tropical rainforests to frozen tundra. Each ecosystem has a unique balance of species, with each species playing a specific role. This balance is maintained through various mechanisms, including competition, predation, and mutualism.

Ecosystem design provides many vital services affecting human life, such as water filtration, air purification, and food. At the same time, humans have a profound impact on ecosystem management through deforestation, destruction, and pollution. Careless actions of humans can disrupt the delicate balance of ecosystems, leading to a decline in biodiversity, the extinction of essential species, and climate change.

Conservation and management efforts aim to protect and restore ecosystems and maintain their resilience. This involves protecting habitats, reducing pollution, and managing human activities to minimize ecosystem harm. It also requires monitoring and understanding environmental change and taking steps to reduce or correct human-caused impacts. As we protect ecosystems, they provide services critical to life on this planet. That is part of ecosystem design.

An ecosystem is an ecological system. As we think about the multitude of ecosystems, large and small, localized and widespread, we must realize that they are systems. Do systems happen by accident, or do they require intelligent planning? Can complex things come together to form an efficiently-functioning ecosystem on their own? Every living thing consists of many complex systems within the cells, organs, and whole bodies. Ecosystem design involves systems within systems within systems working together in balance.

Can efficient, balanced systems happen without a system designer? If there is a Designer of Earth’s ecosystems, as I believe there is, we owe it to Him to take care of what He has given for our existence and enjoyment. Genesis tells us that God gave humans the job of managing the creatures and ecosystems of planet Earth. (See Genesis 1:28.) We must avoid the rebuke the rich man gave to his unworthy steward in a parable Jesus told. “What is this I hear about you? Give an account of your stewardship, because you can no longer be my steward” (Luke 16:2).

February 11, 2023February 8, 2023

Chemical Bonds and Human Relationships

I have always enjoyed teaching units in my science classes that explore the design of chemical bonding and how it produces over 5000 naturally-occurring mineral species. We can learn some lessons by comparing chemical bonds and human relationships. Four different kinds of bonds form all those minerals:

IONIC BONDS. An ionic bond forms when two or more elements are held together by the giving and taking of electrons that exist in the outer energy levels of each atom. The classic example is sodium chloride, in which sodium gives up an electron, and chlorine takes on an electron. Both atoms are striving for stability, and they bond by one giving and the other getting. This kind of bond is not very strong. For example, halite, rock salt, is easily dissolved in water. Comparing these chemical bonds and human relationships, we see co-dependency as a similar type of bonding, and it, too, is not very strong.

COVALENT BONDS. Sharing of electrons creates this type of bond. This is the method of carbon bonding, which is the foundation of biochemistry. It is the bonding technique used to create life. In covalent bonding, the nuclei draw closer together, and the bond is very strong. A diamond is a classic example, and the contrast to halite is obvious. In human relationships, covalency is like marriage when both partners are respected and share in the bonding.

METALLIC BONDS. Elements in this bonding method have an outer layer of delocalized electrons that have fluid movement and are not tightly bound to individual atoms. This cloud of electrons gives a charge to the crystal and allows the material to be ductile, malleable, opaque, and a good conductor of heat and electricity. Copper is a classic example of this bonding. Humans with no solid attraction for others can be very singular in nature.

VAN DER WALLS BONDS. Rubbing a balloon on your shirt and sticking it to a wall exemplifies this very complex bonding. This bonding uses both ionic and covalent techniques. It has silicon-oxygen structures in layers with a variety of elements included in the layers. Examples are mica and clay. This layering prevents anything 90 degrees away from the plane of the layers from passing through it. That makes clay extremely useful in agriculture, landfills, and water reservoirs.

We can compare clay to God’s love for us. We see God’s genius as we use an electron microscope to examine clay crystals that are 1/256 mm or less in diameter. We can see the bonding God calls each of us to realize we don’t all bond in the same way. Our bonding with God gives us an understanding of the unique nature He has given us and everything around us. Geologist Jeffrey Greenberg wrote, “We do not worship Nature in Creation, but we worship the Creator and certainly should love the created as He does.”

Reference: “Bonding” by Dr. Jeffrey Greenberg in God and Nature, Winter 2023

February 10, 2023February 8, 2023

Ayahuasca Drug Use in Churches

As our culture turns away from God and the Christian system of living, we have a vast void that many people fill by turning to recreational drugs. Drug promoters try to convince people that they offer solutions to the negative human experience. For example, we now see “churches” that advertise a quick way to have a spiritual experience using a psychedelic brew known as ayahuasca. The promoters of ayahuasca drug use in churches claim it will give spiritual enlightenment and bring the user closer to God.

The government of New Mexico has allowed the ayahuasca church the right to use the drug as a sacrament even though the main ingredient is illegal under U.S. federal law. In Oregon, a U.S. District Court ruled that a church is free from prosecution for the use of ayahuasca because of the Religious Freedom Restoration Act. The Hummingbird Church, with locations in California and Utah, regularly conducts ayahuasca services.

Ayahuasca came to the U.S. from South America, where it has been used in religious rituals for many years. It is usually consumed as a tea. The active ingredient is N,N-Dimethyltryptamine (DMT), with harmala alkaloids added to prevent the hallucinogenic drug from breaking down in the digestive system.

The risk factor for ayahuasca is very high and similar to the LSD craze. It raises the heart rate and blood pressure. Many users experience seizures, and most lose muscle coordination resulting in falls. Respiratory arrests have happened, especially with people who have had the COVID virus. One complication is HPPD (hallucinogen persisting perception disorder), which, along with persistent psychosis, results in flashbacks long after discontinued use. New data also links serotonin syndrome disorder to the drug.

With ayahuasca drug use in churches in the United States, we can expect it to become more widely distributed. In addition, we can expect to see use among high school and college kids, especially those who have rejected their parent’s church and Christianity in general.

A person who throws God out of their life will desperately seek something to fill the void. Ayahuasca, like LSD, is a bad choice. The body of a Christian is the dwelling place for God’s Spirit (1 Corinthians 3:16-17), and any attempt to find a substitute is destined to fail. Ayahuasca drug use in churches and on the street will bring pain and, ultimately, death to the user. Worse than death, eternal separation from God is the ultimate tragedy for any human being.

Reference: AP News and wikipedia