Tag: science

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Wolf Spiders are One of God’s Dandy Designs

Wolf Spiders are One of God's Dandy DesignsThose of us who live in the United States Midwest are familiar with a very large spider species that we see frequently see in our sheds and outdoor equipment. These spiders have a creamy or golden cast with stripes on their heads and brown, gray, and black markings. Wolf Spiders are One of God’s Dandy Designs.

Wolf spiders have stout bodies covered with sensory hairs. They can run very quickly, and they don’t spin webs. Wolf spiders have eight eyes arranged in three rows. The bottom row has four small eyes, the second row has two large forward-facing eyes, and the top eyes are toward the back and side of the head.

After mating, female wolf spiders place their eggs in a silken sac. They attach the pouch to their bodies and carry them around until they are ready to hatch. When they hatch, the mother assists them by carrying them on her back. She can carry up to 100 spiderlings until they are prepared to function on their own. Sometimes the females will step into a water source and allow the babies to crawl down and get a drink and then crawl back up for safety.

Wolf spiders are agents designed to keep a balance in nature. Their diet consists of ants, grasshoppers, crickets, and other insects that pose a threat to humans and our crops. They can bite a human, but while the bite is uncomfortable, it is never lethal. Wolf spiders are one of God’s Dandy Designs to keep things in balance and prevent our crops from being ruined by insects. Eradicating spiders is not a good idea, and wolf spiders are one of the best friends we have.
— John N. Clayton © 2019

Data from the Herald Bulletin by Sheryl Myers October 29, 2019.

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Negative Data on Marijuana

Negative Data on MarijuanaThe current craze on the use of marijuana has convinced many people that it is a miracle drug that will take care of all health issues. Some claim that it can not only help in cases of mental illness and dementia but that it also can cure cancer, Crone’s disease, Alzheimer’s, and a host of other common maladies. There are medical uses of components of marijuana that are promising and may be refined and used as pharmaceuticals in years ahead. What many are ignoring is negative data on marijuana.

There are good reasons to avoid using marijuana in some cases. In Colorado, the following negative factors are connected to the use of recreational marijuana:

1) Since marijuana was legalized in Colorado, there has been an 8% rise in homelessness. The Colorado Division of Criminal Justice has shown that the legalization of marijuana has attracted transient people to the state.

2) The Colorado Health Department has shown a 400% increase in children younger than eight years of age who have been poisoned by high potency cannabis leading to emergency room visits.

3) Children ages 1 to 13 have been exposed to second-hand marijuana smoke in thousands of homes.

4) A study by the University of Colorado of 639 teenagers treated in 2015 in one Colorado hospital system either had cannabis in their urine or told a doctor they had used it.

5) The Highway Loss Data Institute has reported that Colorado, Oregon, and Washington have seen a 3% jump in auto collision claims since the legalization of marijuana in those states.

Having cannabis available as a controlled medical substance is one thing. It is another thing to make recreational marijuana available to anyone and everyone knowing the negative data on marijuana use. Like cigarette smoke, this is a health hazard that doesn’t just involve the user but also involves people in the user’s house and environment.
— John N. Clayton © 2019

Data from Rebecca R. Bibbs in the Herald Bulletin 11/4/19, page A2.

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Rossby Waves and Earth’s Climate

Rossby Waves and Earth's ClimateWe have previously discussed the movement of air around the Earth, and the circulation pattern called the Hadley cells. Another important factor in Earth’s climate is Rossby waves.

Because the equator is hot, heated air rises and moves away from the equator, dropping its moisture as it cools. At about 30 degrees latitude, the now dry air falls back to the Earth, producing deserts. As the air reaches Earth’s surface, it moves north and south, creating the trade winds in the subtropical area and the prevailing mid-latitude winds in latitudes between 30 degrees and the polar regions.

A wide range of things alters this simplified picture. When greenhouse gases like carbon dioxide accumulate, they reflect infrared radiation causing the Earth’s atmosphere to become hotter. This effect isn’t uniform, however. Because of melting sea ice, Earth’s poles are affected by greenhouse gases more than the area of the equator. This causes a thermal imbalance between the poles and the equator affecting circulation around the poles and creating Rossby waves.

As the thermal imbalance has become greater and the air more wobbly in recent years, that affects the jet stream. The wobbles this past year have caused the northern jet stream to go further south than usual, bringing cold into Arizona in late spring. When the jet stream swung north, it brought hot tropical air toward the poles. On its way north, it brought unusual amounts of water into Oklahoma while Anchorage, Alaska, got temperatures over 90 degrees for the first time ever. Rossby waves is the name applied to the meandering high-altitude winds that have a major influence on Earth’s weather.

All of this shows us how fragile Earth’s climate is. Weather patterns depend on a wide range of variables which include the:
*size of the Earth’s atmosphere
*tilt of the Earth
*distribution of land compared to water
*chemical makeup of the atmosphere
*kind of radiation coming from the Sun and how that radiation is absorbed and reflected
*nature of Earth’s surface (whether ice or black dirt)
All of those factors go into making Earth a habitable planet.

We exist on this planet because of the precision design and construction of Earth and its atmosphere. The fact that it has stayed stable long enough for human life to exist for thousands and thousands of years is a testimony to the careful design and construction. Proverbs 8 finds “wisdom” speaking about its role in the creation process. Wisdom says she was there before the creation (verse 22-23) and that wisdom was a part of the preparation of the heavens (verse 26-28).

As we see the results of the small changes that have happened to the atmosphere in the past 100 years and the instability of Rossby waves, we wonder at Earth’s design and the wisdom of God who created it.
— John N. Clayton © 2019

Reference: Astronomy, December, 2019, page 64.

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Most Difficult Issues of Life

Most Difficult Issues of LifeI believe that one of the most difficult issues of life is what to do when…
…you have been told you are going to die
…you are in enormous pain
…there seems to be no hope of recovery
…your care is using up the inheritance of your children
…and quality of life for you is absolutely zero with no hope it will ever get better.

I have seen friends and family in that situation and observed it in people with Alzheimer’s and dementia. This issue is a growing problem because our population is aging. At my age, I find that when I read the obituaries in the South Bend Tribune, there is someone I know listed nearly every day. We are not talking about “pulling the plug,” where a mechanical device keeps a body technically alive. We are talking about physically doing something to a patient that will result in death.

In 2019, New Jersey, Maine, Oregon, Hawaii, and New York all passed laws that either allowed medical aid in dying or made it easier to get help to die. Hearings that will lead to medical assistance bills were conducted in Connecticut, Maryland, Massachusetts, Minnesota, New Mexico, and Nevada. An organization called “Compassion and Choices” has spearheaded a national movement to promote physician assisted suicide, and they have enormous support from celebrities and academics.

The fact is that death remains one of the most difficult issues of life. The arguments against physician assisted suicide are especially emotional. By choosing that path, we are trusting human judgment about whether death is close at hand. There are cases where someone who was expected to die made an amazing recovery. Psychological and spiritual healing sometimes results when a person knows that they are about to die. Support as friends and family rally around a dying person can rebuild relationships and restore family unity that is rare in today’s world. Many believe that leaving the time of one’s death in the hands of God is a necessary spiritual responsibility.

There is no question that we need to make changes in the laws and practices concerning the most difficult issues of life and death. Dealing with Alzheimers and dementia is very different from dying of cancer. Huge medical strides are making judgment difficult in all of these cases. Making a person comfortable throughout the last stages of life should be a priority for geriatric medicine. Limiting the use of medications and devices to relieve pain for a dying person is not only cruel but unnecessary. We should be able to win life’s final war with pain without resorting to terminating life.
— John N. Clayton © 2019

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What the Mercury Transit Tells Us

What the Mercury Transit Tells UsAbove is a photo of the Sun. If you look closely, you will see a small dot in the upper half near the right side. That is the planet Mercury, the closest planet to our Sun. Mercury made what astronomers call a “transit” of the Sun on Monday morning, November 11, 2019. In our area of the country, the sky was overcast, and it was snowing. However, Bill Ingalls of NASA took this photograph from his location in Arlington, Virginia. I find it interesting to consider what the Mercury Transit tells us.

What’s so special about Mercury passing in front of the Sun? For one thing, it doesn’t happen very often. Although the last time was only three years ago, the next time will be in 2032, but it won’t be visible from North America. The next Mercury transit visible in North America will be in 2049. Since Mercury is closer to the Sun, it passes between the Sun and us every 116 days. However, most of the time, it is either above or below the Sun from our view, and Earth’s atmosphere makes it invisible in the daylight.

Scientists used precision telescopes and equipment to study the transit. They can learn more about the atmosphere of Mercury as it is silhouetted against the Sun. Historically Sir Edmund Halley (1656-1742) watched a transit of Mercury and realized that it could be used to measure the distance between the Earth and the Sun. It occurred to him that a transiting planet would appear in different positions to viewers in different locations on Earth. Measuring the apparent shift between two distant Earth locations at the same time and applying a little math, one could calculate the distance to the Sun. In 1769, after Halley’s death, astronomers used a transit of Venus to calculate the Earth-Sun distance.

Think about what the Mercury transit tells us without even seeing it? Because of the fact that astronomers can know in advance the exact date and time of a transit of Mercury (or Venus), or a solar eclipse (when the Moon passes between Earth and Sun) we realize that the solar system is orderly. We can study the heavens and learn of the Creator. We can see His wisdom and design of our planet and the solar system in which it exists. We can know there is a God by the things He has made (Romans 1:20) as the heavens declare His glory (Psalms 19:1).
— Roland Earnst © 2019

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Space Debris: A Growing Concern

Space Debris: A Growing Concern to Astronauts in SpaceA significant issue for the future is our total lack of care for the planet on which we live. We not only have the problem of plastic waste and carbon dioxide emissions, but now we have the issue of space debris.

From 1957 when the space age began, until January of 2019, humans have placed nearly 9,000 satellites in Earth orbit. More than half of them, around 5,000, are still in orbit, and 1,950 are still functioning. In addition to the satellites, there is debris from all this activity. The European Space Agency tells us that there are 130,000,000 pieces of debris larger than .04 inches in orbit around Earth. The number of articles between .4 inches and 4 inches is 900,000, and 34,000 are 4 inches or larger.

What all of this space debris does to Earth’s neighborhood is becoming a concern to scientists. It creates a danger of collision with operating satellites or crewed spacecraft, such as the International Space Station. That danger becomes especially apparent when you realize that space debris can be traveling at speeds up to 17,500 miles per hour (28,100 km/hr). The threat obviously increases as we continue to orbit objects of all kinds, leaving more junk in space.

Why is it that we have to have a tragedy to make us realize the importance of being good stewards of what God has created for us? God gave us the responsibility to take care of the Earth, and He has not rescinded that duty as we develop new technology.
— John N. Clayton © 2019

Data from Astronomy, December 2019, page 15.

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Understanding the Human Mind

Understanding the Human MindFor those of us without a background in electronics and engineering, the inside of a computer looks impossibly complicated. Humans have created incredibly complex things. Those things have helped us understand everything from the microscopic world to outer space. The things we have created and the changes we have made can bring enormous good or tragic destruction. Therein lies the problem. Although we can understand much about the physical world, we still far from understanding the human mind.

In spite of our great progress in electronics, nuclear energy, and space, we still have no idea why people behave the way they do. What makes a person fall in love? Why do people feel guilty? What gives humans artistic ability and an appreciation of beauty? How can we have sympathy for one another or for an animal? These things involve understanding the human mind.

The difference between what a computer chip does and the things human minds do is the difference between the physical world and the spiritual world. In the physical world, all that happens is a product of forces and energies which are easily measured and controlled. Students in a basic physics course are quickly impressed by how easy it is to understand how physical things work and how accurately we can predict what physical forces will do. Just the opposite is true of the spiritual world. Why a person falls in love with someone of the opposite sex might be, to some extent, explained in terms of hormones. It’s another matter to explain why a person would love an idea to the extent that they will die for it. In that area, all biological explanations seem to fail at an elementary level.

Scientific attempts to explain and understand spiritual phenomena have failed because those phenomena are not physically derived. Our ability to understand them has to be on a spiritual level. One of the significant challenges for someone like your author in moving from atheism to Christianity is learning to think and comprehend the spiritual. The Bible even tells us that this will be the case:

The man without the Spirit does not accept the things that come from the Spirit of God, for they are foolishness to him, and he cannot understand them, because they are spiritually discerned. (1 Corinthians 2:14)

We are beings created in the image of God. That image has nothing to do with our physical makeup because God is not physical. It has to do with the fact that what makes humans unique is our spiritual component – our soul. Our bodies are not unique. Other animals possess hearts, lungs, eyes, and bones. Our true uniqueness, our soul, is beautifully displayed in our creativity, worship, and human feelings.

In one way, this concept is like Einstein’s theory of relativity. I would tell my students, “Einstein’s theory of relativity is incredibly easy to understand. It’s just really difficult to believe!” The idea that we are created in the image of God, and that our humanness is a reflection of that unique creation is so simple that people tend to reject it. Rejection of God’s simple answer to the human dilemma leads to the many problems ripping and tearing at people and our society today. Understanding the human mind requires realizing our spiritual dimension and the fact that we are created in the image of God.
— John N. Clayton © 2019

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Learn from Trilobite Eyes

Learn from Trilobite EyesOne of the more interesting fossils you will ever find is a trilobite. This three-lobed ocean-going creature was an arthropod related to insects and crabs. Its closest living relative is probably the horseshoe crab, although behaviorally, it may have been more like a lobster or crayfish. Today we find beautifully preserved trilobite specimens in rocks dating back to the beginning of life on Earth. What can we learn from trilobite eyes?

We can study and learn from trilobite eyes because they were made of the mineral calcite. Calcite is the same mineral that makes up limestone, so it is quite hard and efficiently preserved. In its purest form, it is perfectly clear. Calcite possesses what scientists call a double index of refraction. Because of the arrangement of atoms in calcite, light arriving at one angle passes undisturbed while light at another angle will be split into two beams.

In addition to being made of calcite, the trilobite eye was made up of a honeycomb of hexagons. There could be several thousand hexagons in the eye arranged so that light from any angle would be refracted into the animal’s eye. If it came perpendicularly, the light would go straight to the back of the eye. If it came at an angle, the double index of refraction would still bring the light to the back of the eye. There was a small wall between the hexagons so that light from the hexagons did not overlap each other. When arthropods grow, they molt their outside layer, and the new larger layer hardens. The eye material would add hexagons as the animal got larger.

This kind of eye is similar to the eye of a housefly. Like flies, trilobites would have been especially good at detecting motion. They also would not have a problem with near-sightedness or far-sightedness. Something an inch away or a mile away would both be in focus at the same time.

There is one vision problem the trilobite would have. It’s called spherical aberration. The thickness of the materials in each hexagonal lens would not be the same, and that difference could distort the image. In the trilobite eye, this problem was solved by magnesium atoms added to the calcite in a way that corrects the aberration. Modern opticians do this with what they call a doublet lens.

Scientists have observed other special features in various species of trilobites. They have found some eyeless trilobites that probably lived in areas with no light, such as very deep in the ocean. Other eyes were mounted in ball-like structures that could move. Still others were positioned so that the animals could bury themselves in the sand like a stingray while their eyes could still look out for food or enemies.

There are many lessons we can learn from trilobite eyes. The incredible complexity is a tribute to God’s wisdom and design. In this case, the complexity is of particular interest because trilobites were some of the first animals to live on this planet. That fact presents a problem for those who say complexity is a result of evolutionary forces over a very long time. Trilobites already had a sophisticated visual system when they first appeared in the fossil record in the Cambrian period 500 million years ago. Darwinistic models cannot explain the trilobite eye, but the God of the Bible can.
— John N. Clayton © 2019

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Why Do We Have Mosquitoes?

Why Do We Have Mosquitoes?Every summer and early fall, the newspapers start talking about how horrible mosquitoes are. Then I have to deal with questions of why mosquitoes exist. If there is a kind and loving God, why do we have to worry about the diseases that mosquitoes carry? I have heard some people give rather foolish answers to this question, and I don’t wish to over-simplify in discussing it. But why do we have mosquitoes?

Many years ago, one of my professors at Notre Dame was Dr. George B. Craig, whose specialty was mosquitoes. He was “an internationally recognized expert on the biology and control of mosquitoes” according to a publication of the National Academies of Sciences. As one of his students, I learned some fantastic things about mosquitoes. Mosquitoes are pollinating insects. Most species of mosquitoes pollinate plants and don’t “bite” anything.

The word “mosquito” is Spanish for “little fly” and there are some 3500 species of them. The larvae of the mosquito are a significant part of the diet of fish and other water creatures. The mutation which turned some of them into bloodsuckers seems to have come into existence in recent history. It appears they were not created that way, and certainly have not always carried malaria and other diseases. The fact that there were no mosquitoes in Hawaii until the white man came to the islands with water barrels containing mosquito larvae is another important point to consider. The question of “why do we have mosquitoes” won’t always get answered to everyone’s satisfaction, but at least we can raise some points to make people think.

The design of the various food chains on Earth is very complex. This is especially true in freshwater areas with unique problems. In Alaska, for example, the necessary minerals for plants and the food sources for bears come from the salmon runs that bring the nutrients. The soil is sparse and nutrient-poor, and much of the year, the cold prevents normal food chains from functioning. Insects provide a significant means of moving nutrients through the system, so they are the base of the food chain in those freshwater systems. Without mosquito larvae to feed the freshwater creatures, including the salmon, that life would not exist.

Research has not given us enough data to understand how mutations in insects allow them to become disease carriers. There are multiple possible answers to that question, and future discoveries will make it more clear. Those of us who live in the north may not like the mosquitoes that make our outside activities uncomfortable, but we know how to cope with them. Why do we have mosquitoes? As we tie our dry flies to fish for trout and salmon, we see why the beauty of the north is at least partially rooted in things that complicate our lives. Mosquitoes are among those complications.
— John N. Clayton © 2019

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Moon Record in the Solar System

Moon Record in the Solar SystemThe solar system record for the largest number of moons has just been taken over by Saturn. Previously Jupiter was the record holder with 79. Now the moon record in the solar system goes to Saturn with 82!

Astronomers used some of the world’s largest telescopes, including the Subaru Telescope in Hawaii to make the recent discoveries. The same team led by Scott Sheppard of the Carnegie Institution for Science in Washington, D.C., discovered 12 previously unknown moons around Jupiter last year. Now they have helped Saturn pull ahead of the competition.

Here we are living on a planet with only one Moon. Should we feel disadvantaged? Not at all! Imagine how confusing it would be to live on a planet with 82 moons. Seriously, one is enough. That is especially true when we have one Moon that is just right. We have pointed out before how precisely well-designed and well-placed our lone Moon is. Here are a few reminders with links to get more information:

Our Moon…
…has just the right mass to stabilize Earth’s rotational tilt.
…is just the right distance from Earth to create beneficial ocean tides.
…is just the right size to create total solar eclipses, which have helped us to learn more about the Sun.
…works with the Sun and stars to “mark seasons and days and years” (Genesis 1:14)
…reflects the light of the Sun to give a night light essential for many forms of life.

Those are a few of the reasons our Moon is the best one in the whole solar system! We asked before, “How many moons are enough?” Even though the number of known moons orbiting Jupiter and Saturn has changed since we asked that question, the answer is still the same. One Moon, precisely designed and positioned, is exactly what we need. We hold the moon record in the solar system for the best Moon of all! There are too many “coincidences” for it to be an accident. We see the work of a Creator, who is an amazing Engineer.
— Roland Earnst © 2019