science Archives

July 22, 2024September 5, 2024

Solar Storm Affected Mars

A massive solar storm affected Mars on May 20, 2024, shortly after it caused impressive auroras on Earth. This latest storm is part of the normal eleven-year cycle of solar maximums, but it is the first time such a storm has occurred while astronomers have the equipment to record its effect.

Xrays and gamma rays, which travel at the speed of light, reached Mars first and were followed minutes later by charged particles. According to NASA, the Curiosity rover at Gale Crater near the Martian equator took pictures showing white streaks resembling snow but were actually charged particles. The radiation from the solar particles was so intense that the star camera aboard the Mars Odyssey orbiter temporarily shut down.

Curiosity rover’s measurements of the radiation reaching Mars’ surface show that an astronaut standing next to the detector would get radiation equal to 30 chest X-rays. Earth has a strong magnetic field to shield it from energized solar particles, but Mars does not. At the same time, the thin Martian atmosphere could not give protection as the solar storm affected Mars.

Planets with a functional atmosphere and located in the Goldilocks Zone, where liquid water on the surface is possible, are rare. All stars go through cycles that pose threats to life on their orbital planets. Mars, a potential target for human visitation and a place where people speculated that life might exist, has received significant attention. This new data from a common solar event suggests that conditions for life to exist are even more challenging than previously thought.

The fact that a solar storm affected Mars is important. It tells us that Earth’s creation and the life on it are the product of intelligence and design, not opportunistic chance. They also tell us we must take care of the Earth because, in reality, there is no other place to go if we mess up this planet.

Reference: CNN Reports on Space Science for June 14, 2024.

July 17, 2024July 16, 2024

Trout Fins Are Designed for Efficient Swimming

Technology has allowed us to see the design of things in the natural world. Dr. Haibo Dong at the University of Virginia has used 3D computer models to study the turbulence created with each fin of a trout. American Scientist magazine states, “Interactions between swirling eddies created by a swimming trout show how its body is optimally laid out for energy-efficient movement.” Trout fins are designed for efficient swimming.

A trout’s body is shaped to swim through the water with less drag than any other shape. However, the role of various fins is not easy to see. Virtually all fish have a dorsal fin on the back and a caudal fin on the tail. Trout have other fins, including pectoral fins near their heads and pelvic fins near the center of their bellies. Toward the back of the trout’s body is a small adipose fin on top and an anal fin on the underside. The researchers have shown that the fin locations increase the thrust the tail produces. The anal fin produces 8.6% more thrust reducing the drag by 18.6%. Trout fins are designed for efficient swimming, or as the researchers conclude, “the whole trout is optimized for efficient swimming.”

Other fish have different fin arrangements to match their survival needs. A tuna living in the open ocean has a different layout of fins because it is designed for speed rather than efficiency. Fish that confine their existence to the bottom of a lake or river will not have the same fin layout as the tuna or the trout. For example, catfish have a fin arrangement designed for protection. Those of us who have grabbed a catfish incorrectly may have suffered a painful jab from its fins. Trout fins are designed for efficient swimming since they make long migrations, swimming upstream and sometimes over waterfalls.

Our technology allows us to understand the various designs seen in living things. Trout fishermen know that catching a trout differs from catching any other fish because of their mobility and muscular nature. Research has shown that the trout’s design shows wisdom right down to the shape and location of its fins. We suggest that this design is the product of a Designer, not just blind opportunistic chance. Genesis 1:21 tells us, “God created the great creatures of the sea and every living and moving thing with which the water teems..” Thanks to technology, we understand how over-simplified that statement is.

Reference: “Fins Working Together” in American Scientist magazine for July-August 2024, pages 204-206.

July 11, 2024July 8, 2024

Genetics Dictate Biological Gender

A significant issue in America today is what to do with young people who have decided to change their gender. Without getting into the theological issues, the scientific fact is that a person’s genetics dictate biological gender. Men and women are biologically different.

One of several demonstrations I used in my physics class was to have a boy and a girl stand with their heels against the wall and lean over to pick up something. Another demonstration is to have a man and woman of equal height kneel with their head in their hands and then put their hands behind their backs. Women can do that easily, while a man will fall on his face. This is due to the anatomical makeup of women compared to men. A woman’s pelvis is typically larger than a man’s pelvis. Thus, women tend to have a lower center of gravity. The position of the center of gravity in women is 55% of the total height, while in men it is 57%. Women’s center of gravity is vertically lower than men’s because their bodies are larger in the pelvis, but their shoulders are narrower.

The point of this is that genetics dictate biological gender. Changing your gender does not change the anatomical makeup given to you at birth. In practical terms, what does that mean for young people today?

1) In athletics, the birth gender will dictate the competence in certain sports. You won’t see trans males playing in the NBA. In swimming and track, there will be striking differences in performance with trans females who have a male body.
2) The long-term effect of hormones used to maintain a gender change is unknown, but most medical experts say it will not last for more than a decade, if that. The probability that a trans person will have a shortened life expectancy is very high.
3) Surgical procedures to accommodate trans changes cannot be reversed.
4) Some will use the whole trans agenda to take advantage of others. Allowing a transgender student to use bathrooms and locker rooms of their choice is going to lead to abuse by typical non-trans teenage students. Boys who want to go into a girl’s restroom and ogle females can do so by simply declaring they are trans.
5) Private colleges will not be able to have dormitories that are only for one sex. This is a massive problem with conservative Christian colleges who, for religious reasons, wish to remain able to offer boys’ dorms and girls’ dorms free of the opposing gender.

A U.S. appeals court rejected the Biden administration’s effort to allow transgender students to use bathrooms and locker rooms and join sports teams that align with their chosen gender. The Biden administration was trying to protect the rights of LGBTQ students, but the question is whether they were violating the rights of non-LGBTQ students.

Genetics dictate biological gender. We suggest that from a Christian apologetics standpoint, the result will be catastrophic whenever humans try to change God’s plan and design for anything. This is just one more example of that.

Reference: “Biden administration loses bid to revive legal protections for LGBTQ students” by Daniel Wiessner on Reuters news service (June 14, 2024).

July 9, 2024July 8, 2024

Negatives of Marijuana Use

We live in Buchanan, Michigan, which some have called “The Marijuana Capitol of the Midwest.” Others have dubbed the town “Bucannabis.” I have lost count of how many marijuana outlets there are between Buchanan and Niles, Michigan, but there must be at least a dozen. It has been interesting to see the proponents pushing the supposed benefits while ignoring the negatives of marijuana use.

It is true that the number of drug arrests in our area hasn’t changed much since the legalization was instituted. However, we see a high percentage of out-of-state license plates on cars at these establishments, so our local data may not be meaningful. Commercial sales of marijuana have exceeded 48 million users in the United States, while medical issues are the most disturbing aspect of the negatives of marijuana use.

Medical information is now available in the Journal of the American Medical Association, the British Medical Journal, and from studies done at Columbia University. We know that cannabis has a very negative influence on the outcomes of pregnancy. Recent studies have linked marijuana to bad health outcomes involving the lungs, hearts, brains, and gonads of users. Smoking weed increases the risk of clogged arteries and heart failure. It has also been linked to chronic bronchitis, and cannabis plants bring metal pollutants such as lead into the user’s bloodstream.

The biblical teaching that our bodies are the “temple of the Holy Spirit” (1 Corinthians 3:16) tells us the importance of caring for our bodies. That includes not engaging in the use of recreational drugs as we learn the harm they can cause to our bodies. As the negatives of marijuana use become apparent, we see the wisdom of God’s instructions.

Reference: Scientific American for March 2024, pages 20-21.

July 8, 2024July 7, 2024

Just Right for Life to Exist

Since astronomers have discovered more than 5,000 exoplanets orbiting stars other than our Sun, many insist there must be life elsewhere in the cosmos. For those of us who believe in God, that isn’t really an issue. If there is life out there, God created it, but the Bible only speaks to our planet. However, the evidence is growing that our planet is more unique than most people realize. A “Goldilocks” planet is at the proper distance from its star so that the temperature is “just right” for liquid water to exist on the surface. Some exoplanets appear to be in the habitable zones of their stars, but many other factors must also be just right for life to exist there.

Most known exoplanets are like Jupiter, having no terrestrial surface. To support life, a planet must be the right size, have a stable orbit inside the habitable zone of a stable star, and have the right atmosphere. It must also have working plate tectonics and a large moon to maintain a stable axis tilt. To be just right for life to exist, a planet must also be in the habitable zone of its galaxy – not near the center, exposing it to lethal gamma-ray bursts.

Our Sun is a G spectral star, but only 9% of the stars in our galaxy are that type. M-class dwarf stars are the most common and long-lived stars, but they emit large amounts of radiation that would cook any life on their planets. Also, planets around such a star would become tidal-locked, with one side facing the star being excessively hot while the other remains cold.

Another star system requirement for life would be having outer planets large enough and in the correct position to sweep away asteroids and comets that would bombard an inner planet. To support life, a planet also needs a strong magnetic field to shield the surface from the star’s radiation and cosmic rays.

Our Earth is just right for life to exist. We are defining life as the biology books do: being able to move, breathe, respond to outside stimuli, and reproduce. Any conjecture about fire people or rock people is in science fiction – not scientific fact. The bottom line is that Earth is a special place created by God for a special purpose and is unique among all other objects in the cosmos.

Reference: “Is Earth the Only Goldilocks Panet?” in Discover magazine, July/August 2024, pages 54 -57.

July 4, 2024July 2, 2024

Corn Growing in America

God has blessed us with many different plants for food. In Genesis 3:17-19 we read, “Cursed is the ground because of you; through painful toil, you will eat food from it all the days of your life. It will produce thorns and thistles for you and you will eat the plants of the field. By the sweat of your brow, you will eat your food until you return to the ground since from it you were taken; for dust you are, and to dust you will return.” If you have ever had a large garden or a farm, you know how true these words are. Plants provide food and essential materials for people worldwide, and corn growing is dominant in the United States.

One bushel of corn requires 50 to 60 plants, yielding 91 ears. That boils down to 80,000 kernels, which will produce corn syrup for 400 cans of soda or 2.8 gallons of ethanol. In the United States, farmers use 90 million acres to grow corn, and 40% of it is used to make ethanol. Corn is also used to make sweeteners, starches, oils, medicines, cosmetics, bioplastics, crayons, toothpaste, and salad dressings.

Corn growing is a major farming activity in Illinois, Iowa, Indiana, and neighboring states. The history of corn cultivation is fascinating. A wild grass called teosinte produced small ears of a material called maize. Through selective breeding, Mexican farmers produced some 250 kinds of corn. Modern agricultural science has continued to produce larger ears with greater nutritional content. Corn, as we know it, was not available to the ancient Hebrews, but other grains were.

Today, many are rightfully concerned about the increasing conversion of grasslands into cornfields. Corn cultivation, with its substantial water requirements and potential impact on climate and water pollution, raises important environmental issues. As stewards of God’s creation, we are entrusted with the responsibility to ‘take care of the garden’ (Genesis 2:15). We possess the tools and resources to fulfill this duty and must use them wisely, ensuring that we are good stewards of God’s gifts.

Reference: worldwildlife.org

July 3, 2024July 2, 2024

Firefly Frequencies at Work

There are 56 species of flying lightning bugs, or fireflies, and each emits light of a different frequency. The different firefly frequencies cause different colors, such as green, yellow, or red, but science has found that the frequencies are far more precise than the color. The fact that each species has a particular wavelength allows fireflies to find mates, even in an area where other life forms use bioluminescence.

Fireflies have four stages. They begin as eggs but spend most of their 61-day existence as larvae, eating snails, slugs, and worms. They have a pupa stage just before becoming adults. Bioluminescence serves mainly as a way for males and females to find each other, and having the right frequency is essential in that process. Research is continuing on how the frequencies are specified, but 56 species means that the frequency variation has to be carefully created and controlled.

Most living things have methods of communication that serve multiple purposes. Communication allowing males and females to find each other is always risky because it exposes them to predators. Because fireflies’ flashing is sporadic and not a steady glow, they are less likely to be eaten. If you have tried to catch these flying lightning bugs, you know how hard it is because they flash and run, making them hard to locate.

We can learn many things by studying the natrual world, including the chemistry that allows various firefly frequencies of bioluminescence. In the firefly we see another demonstration of God’s wisdom and intelligence.

Reference: PBS “Nature” program on May 16, 2024.

July 2, 2024July 1, 2024

Animal Memory Capacity

One of the most interesting areas of study in living things is animal memory capacity. Memory is designed into animals to benefit both them and other forms of life in their ecosystem. We see a good example of partial memory in squirrels who bury massive numbers of seeds, such as acorns, but only remember where they put a fraction of them. What that means is that the squirrels have enough to eat, but they plant trees over a huge geographic area. There are many forms of life where partial memory serves a similar purpose.

On the other hand, some life forms remember virtually 100%. A good example of this is Clark’s Nutcrackers. They survive on pinion seeds, and a single bird may hide as many as 30,000 seeds, placing 4 or 5 seeds in each spot. Throughout the winter, the Nutcracker, when hungry, will return to each hiding place to get food. By the time spring arrives, this bird will have consumed almost all of the seeds hidden in thousands of different places.

It is interesting that different forms of life have different memory capacities that benefit not only themselves but also their environment. You could compare it to thumb drives for your computer, having different memory capacities depending on the thumb drive’s design. God has placed different storage in the memory of the brain of each creature He created. In humans, that storage capacity is huge and can be accessed in many ways. In the animal world, there is an interaction with the environment that is beneficial to the animals and the environment.

Trying to explain this animal memory capacity by evolutionary reasoning is incredibly difficult and is full of assumptions. Those of us who believe in God as the creator understand why this kind of thing occurs over and over. It speaks of God and His wisdom and design in the world around us.

Reference: Our Fascinating Earth: Strange, True Stories of Nature’s Oddities, Bizarre Phenomena, and Scientific Curiosities by Dr. Philip Seff, Ph.D.

July 1, 2024June 29, 2024

One of the Natural World’s Most Amazing Things

The hummingbird is one of the natural world’s most amazing things. Researchers have compiled new hummingbird data using modern methods, including high-speed photography. An adult hummingbird weighs roughly 4 grams, and to get a handle on that, a penny weighs about 2.5 grams. There are 21 species of hummingbirds in North America, and one species, called the bee hummingbird, weighs less than a penny.

Hummingbirds don’t beat their wings as most birds do; instead, they rotate them in a figure-eight pattern. That allows them to hover and fly backward or even upside down. The rate of wing motion is up to 80 cycles per second. That is within the range of human hearing and explains the humming sound that gives these birds their name. The metabolic rates of hummingbirds are amazing, as their heart rate is around 1,260 beats, and their breathing rate is 250 breaths per minute. These rapid rates mean hummingbirds may find a place to rest as often as every 15 minutes.

One of the natural world’s most amazing things is that hummingbirds can travel non-stop across the Gulf of Mexico in spring and autumn. Before embarking on that trip, they double their body weight with nectar and insects. When the temperature is low, they go into hypothermic torpor to survive.

The hummingbird’s eyes have a dense concentration of cones in their retinas containing pigments that act as filters to heighten color sensitivity to red while muting blue. Pollination is a major purpose of hummingbirds. Ruby-throated hummingbirds deposit ten times as much pollen as bumblebees, and their life expectancy is 3 to 6 years.

It is with great joy that I watch hummingbirds come to the feeder outside my office window. Their various characteristics speak of the wonder of God’s creation, defying chance explanation. Once again, we “can know there is a God through the things He has made” (Romans 1:20). The hummingbird is one of the natural world’s most amazing things.

Reference: “Fascinating Hummingbird Facts” by Tom Warren on Almanac.com

June 28, 2024June 25, 2024

Entropy and Disorder in the Universe

The second law of thermodynamics can be stated in many ways. The usual physics statement is that heat cannot move from a lower-temperature reservoir to a higher-temperature reservoir. With any action involving matter, there is always a loss of energy to a state from which it can not be recovered. Actions involve a loss of energy, and we call that entropy.

Heat will move from a warmer area to an area with less heat until the two areas have equal temperatures. Molecules pass from a region of high concentration to a low concentration area until they are equal. A simple illustration is if you spray perfume from a bottle into the air, you will eventually smell it everywhere, but you can’t get it back into the bottle because it will have diffused into the atmosphere.

So, what is the big deal about the second law? Energy drives the cosmos. Stars, galaxies, planets, and objects in space all use energy and are thus subject to the second law of thermodynamics. The first law of thermodynamics says that energy cannot be created or destroyed. The second law tells us that energy is becoming disordered. That means the total amount of energy available for work in the cosmos is decreasing and will end up at zero. The cosmos will eventually experience complete entropy, which scientists call heat death.

The Bible makes it clear that there was a beginning to the creation. (See Genesis 1:1.) Atheists tried to maintain that the cosmos has always existed and oscillates throughout time. There is no evidence to support that. We now know that the expansion of the cosmos is accelerating, so oscillation is impossible. The second law implies that there had to be a beginning to the cosmos when there was perfect order, and no entropy existed. Skeptics continue to try to find a weakness in the biblical account of creation, but all the evidence indicates that there was a beginning.

Even the profound discoveries of quantum mechanics, a branch of physics that deals with the behavior of particles at the smallest scales, have not disproven the second law. In fact, they have revealed that time itself had a beginning, a concept that aligns with biblical passages like Proverbs 8, which refer to God’s wisdom and power. The creation, as it is, speaks of the fact that “we can know there is a God through the things He has made (Romans 1:20).

Reference: “Disorder Reigns” by Tom Siegfried in the June 15, 2024, issue of Science News. The article gives the history of the second law of thermodynamics” citing the work of great past scientists like Lord Kelvin, Rudolf Clausius, and Sadi Carnot.