science Archives

June 27, 2023June 26, 2023

Kangaroo Care for Premature Babies

The British Medical Journal and the World Health Organization (WHO) are promoting a method of caring for small and preterm babies. It calls for holding the baby close to a parent’s naked chest. The WHO advises “immediate skin-to-skin care for the survival of small and preterm babies.” This method is called “kangaroo care” because it copies what kangaroo mothers do with the baby in their pouch.

In 1978, Dr. Edgar Ray Sanabria and Hector Martinez-Gomez started the technique in the maternity ward of San Juan de Dios Hospital in Bogota, Columbia. The country’s death rate for premature infants was 70% before this technique. In some locations, kangaroo care has reduced the death rate to 10%.

Babies put into incubators may be exposed to bright lights and loud noises, and there are not enough incubators to go around in many countries. Researchers say that when the babies are held against the bare chest of their mother or father, they pick up their parent’s heartbeat and breathing rhythms. They also feel the warmth. The doctors published the results of kangaroo care in the journal Curso de Medicina Fetal in 1983. UNICEF began distributing information about the technique worldwide.

Interestingly, both the mother and the father can provide this benefit to a premature baby. Hospitals provide wards where a parent can stay with the child. A premature newborn may take two to three weeks of kangaroo care to be strong enough to leave the hospital. Even then, parents can continue kangaroo care at home.

People who claim that a preborn baby is not a human at 32 weeks or less have no evidence to support that claim. The bond between a mother and father and a child is necessary for the baby to survive, and no mechanical device can substitute for the care of a loving parent.

Reference: National Public Radio

June 26, 2023June 25, 2023

The Design of Beetles

In every environment on Earth, frogs, fish, and various insects depend on beetles for food. We see beetles in deserts worldwide, and many desert animals rely on them as a food source. A mystery that has vexed scientists is the design of beetles that allows them to survive in arid climates.

Recent research shows that beetles have a unique system to recycle water. They have an organ near the end of their digestive system called the “rectal complex,” lined with blister-like cells that draw moisture out of fecal material. Instead of being excreted, the water passes through the wall of the rectal complex and back into the beetle’s body by osmosis. This process allows beetles to be very abundant in desert ecosystems, providing food for various desert creatures.

Insects annually damage up to 20% of the world’s food supply. Because of the design of the rectal complex, red flour beetles (Tribolium castaneum) can survive in dry food storage such as wheat and flour. While this design benefits desert creatures, it is a real problem for humans. Researchers studying these beetles have found a gene that appears to be the key to their ability to recycle water.

The design of beetles serves them well in their natural habitat, but it creates problems when they get into stored human food. God has given living creatures the ability to survive and humans the intelligence to understand the design to benefit our survival.

Reference: Science News May 6 & 20, 2023, page 5

June 23, 2023June 20, 2023

Glacial Erratics and Time

People living in the southern United States may not be familiar with glacial erratics such as the one in the picture. Glacial erratics are rocks deposited by glaciers that are different from the native rocks in the area. Where we live in southwestern Michigan has many boulders like this. Many of us have at least one of them in our yard. They weigh hundreds or even thousands of pounds. Many years ago, when workers were digging the foundation for a wing of our local hospital, they hit a glacial erratic that was so large no equipment could lift it. They had to break it into smaller pieces to get it out of the way.

What is especially interesting about glacial erratics is that no two of them look alike, and they each have their own mineralogy. Some are a form of granite, some are metamorphic rocks like gneiss or schist, and some are sedimentary rocks like limestone or sandstone. As a public high school science teacher, I used to take my classes to the local gravel pit and have my students see how many different rocks they could find. Once, a girl found what she called “a pretty red rock.” I looked at it and recognized it immediately. It was a piece of jasper conglomerate, a rock only known to exist in an outcrop near Bruce Mines, Ontario – a place where I spent many summers as a teenager.

The question is, how did a piece of rock get from southern Ontario to northern Indiana? I have had students find pieces of pure copper in the gravel pit. There is a copper outcrop in the upper peninsula of Michigan that has the same color and texture as the ones my students found. In fact, almost every rock my students found came from a place far to the north of us where those rocks can be seen in outcrops. It is quite evident to thinking students that running water or wind did not carry those rocks. However, a moving sheet of ice can do it. Today you can go to an active glacier and watch that process taking place.

How long does it take for a sheet of ice to flow from Ontario to Indiana? There are places near Martinsville in southern Indiana where you can find similar glacial erratics. Glaciers bring not only minerals but water to our area. There are hundreds of lakes and ponds in the area where we live. Glaciers are a great tool of God to mold and shape the planet, and we are blessed by what glaciers have given us.
The glacial till we found contained no human remains or tools. The glaciers were there long before humans lived in Indiana. The process of shaping and molding the land took an enormous amount of time, but God created time, and it means nothing to Him. Only human theories and religions demand specific time elements. Truly “with the Lord, one day is as a thousand years and a thousand years as one day” (2 Peter 3:8).

June 22, 2023June 20, 2023

Human Destruction by Artificial Intelligence

We have always had, and probably always will have, doom-sayers who predict the human race will be wiped out in the near future. From nuclear war to disease to hostile aliens, there have been countless books, movies, TV shows, and media reports of something that will soon destroy us all. The latest prediction is human destruction by Artificial Intelligence (AI). AI doom-sayers are now predicting the odds of AI wiping out humanity are one in ten and that this could happen within five years.

AI-powered ChatGPT and Google’s Bard can already pass the bar and medical licensing exams. On IQ tests, they score in the 99th percentile – genius level. Some say that AI, without human control or input, could create bioweapons, shut down financial systems, and eventually wipe out humans. One example of human destruction by Artificial Intelligence is that if AI were allowed to solve the climate crisis, its first step would be eliminating humanity. An atheist could claim that AI could wipe out any belief in God by showing that it can act as a god.

There are many kinds of intelligence, and they are all measured in different ways. My mentally-challenged son would score average intelligence on a verbal English language IQ test. However, on a test that involved shapes and simple mathematical logic, he would score a 25. The two tests measured different things. The biblical concept of God as the creator is that God created time, space, and matter/energy. AI is fabricated by humans and takes what is already created, reshaping it to a human frame of reference.

Could AI create chaos? Yes! Can AI take a human-created test structured by a computer and provide an answer another computer or human would accept? Of course! Is there a risk in letting any computer control human activity? Yes! Human destruction by Artificial Intelligence can only happen if we allow it.

All of us know by experience that computers are limited. They depend on electricity and proper data input and ignore human needs. Look at how many times airlines have been forced to shut down flights in recent years due to computer failures. Most fundamental is the fact that humans are not driven by data alone. We respond to psychological and spiritual needs, complex emotions, social needs, and environmental issues. Our relationship with God can make life a positive experience, but AI cannot address the uniqueness of humans.

Reference: The Week for June 23, 2023, page 11.

June 21, 2023June 20, 2023

Chemical Defense Against Predators

God’s design in the natural world provides protection for animals that would appear to be unable to defend themselves. Some animals can’t bite or run, and camouflage is not an option because their environment changes too quickly. Toads and frogs are classic examples of this, but they have an effective chemical defense against predators.

The Sonoran Desert toad (Incilius alvarius) in the desert southwest (also known as the Colorado River toad) defends itself with a chemical mix secreted through its skin. This toad is very large, and its desert environment makes hiding difficult. All toads secrete toxins through their skin, but the Sonoran Desert toad secretes a substance known as 5-MeO-DMT from glands behind each eye and on its legs. This chemical is a powerful hallucinogen secreted by no other toad or frog, and predators quickly learn to avoid it.

The giant leaf frog (Phyllomedusa bicolor) in South America (also known as the giant monkey frog) secretes a chemical known as kambo, which causes violent regurgitation and seizures and even affects the heart function of predators. The chemicals differ with each species, and researchers are trying to determine how the defenses work. Sonoran Desert toads and giant leaf frogs are geographically isolated, yet they share a common problem of vulnerability. They both use a chemical defense against predators but with different chemicals.

Interest in the Sonoran Desert Toad has increased because people have found that licking the toad produces a high. The psychedelic effect has caused people to catch the frogs, threatening their survival. Although predators are smart enough to leave them alone, apparently, humans are not. Abusers call the 5-MeO-DMT toxin “the God molecule,” but researchers warn that it can cause cardiac arrest.

Researchers are studying the ability of toads and frogs to secrete a chemical defense against predators. The difference in the chemicals depending on the species is still a mystery, but it’s a testimony to the design built into the natural world, allowing diversity in living things. The statement of God’s design of humans in Psalms 139:14 is also true of every creature in God’s creation.

Reference: Science News (May 6 and 20, 2023, pages 21-22)

June 20, 2023June 19, 2023

Matter Greatly Exceeds Antimatter

It’s “one of the Universe’s best-kept secrets” and a mystery that physicists are working to resolve. Every subatomic particle in the universe has an antimatter equivalent. Each atom consists of electrons, protons, and neutrons. The negative electrons have alternative positrons with a positive charge. If you could combine an electron and a positron, they would cancel each other. Protons and neutrons, which compose the nucleus of atoms, are made of smaller particles called quarks. There are also anti-quarks, and if you combined a quark and an anti-quark, they would explode and destroy each other. Our universe, and us, can only exist because matter greatly exceeds antimatter.

If matter and antimatter were in a state of symmetry with equal amounts, they would have destroyed each other, and nothing would exist. Scientists theorize that the creation event, or Big Bang, should have created an equal amount of matter and antimatter, so they wonder why the lack of symmetry. In other words, why does anything exist in the universe, our planet, and our bodies? The universe is made of matter, while antimatter is almost non-existent except in radioactive particle decay and particle colliders such as the Large Hadron Collider (LHC) in Switzerland and France.

According to the Standard Model of particle physics, physicists theorize that a “charge-conjugation parity violation” (CP) caused the lack of symmetry – but how and why? Physicists working with the LHC say particles and antiparticles can spontaneously transform from one to the other. LHC spokesperson Chris Parkes said, “Through more precise measurement, large improvements have been made in our knowledge. These are key parameters that aid our search for unknown effects from beyond our current theory.”

We can be thankful that in today’s universe, the amount of matter greatly exceeds antimatter. Since physicists are looking for an explanation, they may eventually solve the mystery. It will be interesting to see the scientific explanation for the lack of symmetry. Whatever process scientists discover, we suggest that this is another example where intelligence and wisdom provide a more reasonable ultimate explanation than accidental chance offers.

References: CERN News and Space.com

June 19, 2023June 18, 2023

The Cosmological Argument for God

Cosmology provides strong evidence for God’s existence. The basic cosmological argument for God involves three simple questions:

1) Was there a beginning to time, space, and matter/energy? The evidence says there was.

2) Was the beginning caused or uncaused? Taking the position it was uncaused violates scientific conservation laws.

3) If it was caused, what or who was the causer? The evidence is that the cause can not be blind, mechanistic chance. Logic suggests that the cause was an intelligence, in other words, God.

As more data becomes available to support intelligence as the cause of planet Earth, the cosmological argument for God becomes stronger. If we define life as that which can breathe, move, respond to outside stimuli, and reproduce, what is necessary for life to exist? Astronomers now talk about the habitable zone (HZ) of stars. This is the zone around stars where the temperature on a planet would allow water to exist in the liquid state on the surface.

Recent discoveries have shown that M-class dwarf stars are the most common and longest-lived stars. The problem with these stars is that their HZ is very close to the star, so tidal forces would lock the rotation of any planet so its same side would always face the parent star. One side of the planet would be constantly hot while the other would be cold. Also, M-class stars would bombard these planets with stellar flares causing massive radiation levels that would eliminate any possibility of life. Other star types create various problems for a life-supporting planet.

Astronomers have determined there is a galactic habitable zone (GHZ) in addition to the star’s habitable zone. A star must be far from the galactic center to have a planet with life on it. The high star density near the core of a galaxy exposes the star system to deadly supernovae and gamma-ray bursts. Mass distribution within a galaxy is also an issue because, near the galaxy’s core, mass concentrations cause gravitational instability.

The basic cosmological argument for God is now supported by a vast number of parameters that must be within precise limits to allow life to exist in a planetary system. Having a large moon is essential to the survival of life on a planet. Likewise, having a shield against incoming cosmic bodies is critical. A body the size of Comet Hale Bopp hitting planet Earth would have sterilized it, killing even microbes that might be present. The Earth’s shield is the arrangement of the Jovian planets. Jupiter, Saturn, Uranus, and Neptune preventing objects like Hale Bopp from reaching Earth.

The more we look at the cosmos, the unique qualities of our planet reinforce the cosmological argument for God. Proverbs 8 personifies Wisdom speaking of God’s creative power and design. As we learn more about the cosmos, the stronger the evidence becomes that “in the beginning God created the heavens and the earth” (Genesis 1:1).

Reference: “Is Earth the Only Goldilocks Planet?” by Klaus R. Brasch in Astronomy Magazine for July 2023, pages 18-23.

June 16, 2023June 19, 2023

Predictions of Earth’s Demise Are Highly Exaggerated

With many world issues to be concerned about, politicians and the media are predicting the end of the Earth because of global warming. Yes, climate change is real, but predictions of Earth’s demise are highly exaggerated.

U.S. Representative Alexandria Ocasio-Cortez received widespread media coverage as she predicted the end of humanity would happen within 12 years. Politicians today continue to scream that the end of the Earth is near. The media quoted our current administration with these words: “The world is facing a grave emergency…Every week brings new climate-related devastation. Floods. Drought. Heat waves. Wildfires, Superstorms … We are in a battle for our lives … Climate change is the biggest threat to the global economy.”

There is no question that we need to take steps to improve our planet, but predictions of Earth’s demise are highly exaggerated. The prophets of doom are not only inaccurate, but they are unsettling. Consider the following facts which you won’t see in most of the media:

1. The number of hurricanes annually making landfall in the U.S. has declined since 1900. That is also true for major hurricanes – category three and above. The second-lowest recorded year was 2022.
2. The wildfires in Australia in 2019 and 2020 were close to Sydney and Melbourne, where the major news organizations are, so the coverage was exaggerated. The total number of fires in Australia as a whole was one of the lowest levels on record. The amount of burned areas over the entire planet has dramatically declined over the past 25 years.
3. In the 1920s, roughly 500,000 people died annually due to climate. That number has been dropping to approximately 11,000 people in 2022.
4. In 1890, renewable sources produced 94% of the world’s energy (mostly wood). In 2021, 16% of the world’s energy was from renewable sources.
5. Unlike the politicians’ proposal of net zero by 2050, the most optimistic model suggests we could reach 95%. However, the cost would be roughly $11,000 per person per year.
6. Yale climate economist William Nordhaus received the Nobel Prize in economics in 2018 for his studies comparing the cost of climate change and climate policy. He showed that restricting the average world temperature to a 6.75 degrees Fahrenheit rise, instead of the 7.4 degrees that it will rise if we do nothing, would cost 20 trillion dollars. Limiting the increase to 5.3 degrees would cost about 100 trillion dollars.

The bottom line is that the media and the politicians are exaggerating the long-term effects of climate change and underestimating the economic cost of climate policy. Motivating people to do something is good, but we must consider the cost and apply innovation to do the job efficiently.

God created a resilient Earth, and we must recognize the challenges and be good stewards of God’s gifts. All the hand-wringing of the media and the politicians accomplishes very little. Predictions of Earth’s demise are highly exaggerated.

Reference: “Thinking Smartly About Climate Change” by Bjorn Lomborg in Imprimis for April/May 2023, Volume 52, Number 4/5.

June 12, 2023June 11, 2023

Freeing Up Nitrogen Atoms

Nitrogen is an essential ingredient in biological molecules, such as proteins and DNA, but nitrogen must be in a free state for these molecules to form. By that, we mean nitrogen atoms that are not already bonded to each other, making them inert. Seventy-eight percent of our atmosphere consists of nitrogen, but nitrogen atoms in the air are bonded with other nitrogen atoms to form nitrogen molecules that are chemically inert. It takes enormous amounts of energy to tear apart nitrogen molecules, freeing up nitrogen atoms to bond with other elements.

A nitrogen atom can be useful for life when it bonds with three oxygen atoms to make nitrate. Nitrogen can also bond with three hydrogen atoms making ammonia, which is also useful for life. This is a complicated issue because Earth’s early atmosphere did not contain much oxygen, so the rock record shows nitrogen bonded to hydrogen atoms. Ammonia has a very low gram molecular weight, so it can escape Earth’s gravity. We see large amounts of ammonia in the atmospheres of our Jovian planets, but that is because their large masses provide enough gravity to hold on to the ammonia.

Humans create nitrogen fertilizer through chemical and electrical processes. But that method of freeing up nitrogen atoms is complex and requires a lot of energy. Scientists in the past have theorized that microbes could have been the method of nitrogen fixation, reducing the nitrogen to nitrates. This is a “chicken-egg” problem because nitrates had to be in existence for the microbes to exist. Freeing up nitrogen atoms would require some non-biologic processes. Studies have shown that electric discharges in lightning have enough energy to tear apart nitrogen molecules, but the rate is insufficient to account for all the nitrogen needed.

New research on volcanoes has shown that eruptions release oxygen and supply enough energy to tear apart nitrogen molecules that bond with oxygen. The nitrates produced would accumulate, allowing life to survive. Studies have shown that a strong volcanic eruption can produce about 60 million tons of nitrate. In 2022 the Tonga-Hunga Ha’apai volcano in Indonesia produced 400,000 discharges in one day.

As we learn more about the chemistry and physics required for freeing up nitrogen to allow life to exist on this planet, the complexity and design of the system astound many researchers. The Bible merely says God did it, but not how or what complexities were involved. Everywhere we look, we see that a wounder-working hand has gone before. Nitrogen is an excellent example of how much wisdom, power, and planning was required for a life-bearing planet to come into existence.

Reference: Science News for June 3, 2023, page 7.

June 8, 2023June 1, 2023

The Nutritional Value of Oysters

We live in an age when worldwide food supplies are limited, and there is incredible food waste in America. However, one food source God has given us is present in all of the world’s oceans. It is the five species of oysters harvested in the United States and many places worldwide. The nutritional value of oysters and their availability makes them an important food source.

Oysters are a keystone species that filter and clean sea water by consuming microorganisms. The average female oyster will produce up to 100,000,000 eggs a year. However, humans’ indiscriminate harvesting of wild oysters has reduced oyster populations in the U.S.A. to only 1% of what they were in the 1800s. In addition to the wild oyster population, these mollusks can be grown in artificial environments anywhere. Artificial tanks can use the runoff from forests, wetlands, and marshes to feed the oysters.

The nutritional value of oysters is well known. According to WebMD, six medium-sized oysters would produce 50 calories, 1 gram of fat, 21 mg of cholesterol, 150 mg of sodium, 5 grams of carbohydrates, and 4 grams of protein. For an American on a 2000-calorie diet, this serving would provide 28% of the daily iron needs, 4% of the vitamin C, and 3% of the calcium. Oysters are also an excellent source of vitamin B12, essential for brain health. They are also rich in vitamin D, copper, zinc, and manganese, all micronutrients that may help to prevent bone loss and osteoporosis.

Our food shortages are not because God hasn’t provided what we need. Current problems of land use, waste disposal, and nutritional deficiencies would be over if humans decided they have had enough war, greed, selfishness, pride, and arrogance. If we would start wisely using what God has given us and applying what we know, we could end hunger and malnutrition on the planet.

References: USA Today for April 23, 2023, page 5PE and WebMD.com.