Tag: God

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Gene Editing Controversy Continues

Gene Editing Controversy Continues
We recently reported on the gene editing controversy when a scientist used CRISPR/Cas9 gene editing to produce “superior” human babies. Jiankui He, a Chinese geneticist, announced that twin girls had been born with genes edited by his medical team to reduce the risk of contracting HIV.

For several years experts have predicted that it will be possible in the future to produce “designer babies” by the technique He has used. The twins’ father has HIV, but their mother does not. We pointed out previously that human knowledge is not good enough to know what collateral damage we may create in such a project. There are also issues about whether humans should ever genetically modify human life. Playing God has enormous responsibilities, and the gene editing controversy brings up concern about the old “Frankenstein Complex.”

Since He’s announcement there have been numerous articles and responses by experts in the field backing what we said in our article:

Researchers say there was virtually no chance the girls would have been infected with HIV since their mother doesn’t carry the virus.

No evidence can verify that the editing was successful and didn’t damage other genes.

Previous CRISPR/Cas9 research has shown that some cells in embryos may be incompletely edited or escape editing entirely creating what is called a “mosaic embryo.”

He was asked why the research was done in secret and why he chose to violate established rules of CRISPR/Cas9. He refused to answer those questions.

Julian Savulescu who is a bioethicist at the University of Oxford said, “I liken it to Russian roulette. You can pull the trigger and not kill, but it doesn’t mean that what you did was right.” We would suggest that this gene editing controversy is a classic of example of the fact that science cannot determine the way its discoveries will be used. In this case, it appears this was a desire to become famous, rather than trying to improve the well being of human life.

There are many Christians who are scientists working with CRISPR/Cas9 and who have stated their dismay and feeling that their greatest fears are being realized. The gene editing controversy continues, and we will hear more of this.
–John N. Clayton © 2019

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DNA Barcodes Support Biblical Record

DNA Barcodes Support Biblical Record
Nearly every day the newspaper has an article that announces some new research on DNA. One of the recent applications of DNA research is to classify living things. Classification is an old issue, going back to Adam and Eve. In Genesis 2:19-20 God brought all kinds of living organisms before Adam so that he could name them. In 1 Kings 4:33 Solomon wrestled with the issue as well. Our current system of naming living things was brought into existence by Carl Linnaeus in the 1700s, but it is gradually being replaced by what is called DNA barcodes.

You can compare DNA barcodes to the barcodes we see when we shop for merchandise. Instead of bars, DNA barcodes are a string of DNA nucleotides. In 2003 scientists began to identify species by these nucleotides. Mitochondria are rod-shaped organelles that can be considered the power generators of the cell. They convert oxygen and nutrients into adenosine triphosphate (ATP), the chemical energy that powers the cell’s metabolic activities. There is one gene named cytochrome c oxidase subunit 1 (COX1) which is found in mitochondria. It is passed only from mother to offspring. The mixing of traits from the father and mother does not happen in this mitochondria, so the DNA nucleotides in mitochondria make it ideal to use in identifying species.

Studies by M.Y. Stoeckle and D.S. Thaler have involved analyzing the DNA barcodes from five million individual organisms which represent 100,000 different species. What they found was that barcode variations within a species vary by small amounts, and there are huge gaps between the species. What that means historically is that each species is essentially an island not connected to other species. If all species came from a common ancestor, you would not see this, but you would see a river from island to island.

The biblical record is very consistent in identifying the groupings of living things. In our materials, we have referred to these “islands” as being “trees in the forest of life.” First Corinthians 15:39 identifies these “islands” or “trees” in this way: “There is one kind of flesh of men, another flesh of beasts (mammals), another flesh of birds and another flesh of fish.” This same grouping is used consistently in the Bible with Genesis 1 & 2 in describing the creation of life, Genesis 7:14 describing what Noah took on the Ark, and 1 Kings 4:33.

There are many more trees or islands than the Bible describes, and they contain living things that may vary enormously. A major debate in science is whether the dinosaurs were birds or reptiles. DNA barcodes may answer that question, but the implications for the biblical record are not significant. The single “tree of evolution” which has been popular for a very long time does not fit the DNA bar code evidence, but the biblical system does. New research is leading to new understandings both scientifically and biblically. It is an exciting time to be alive and to learn from new scientific tools how accurate the biblical record is and how wise God has been in His creation techniques.
–John N. Clayton © 2019

For further information, go to this website: https://micro.magnet.fsu.edu/cells/mitochondria/mitochondria.html

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Too Much Water on Earth?

Too Much Water on Earth?
“God goofed when He made so much water and so little land!” I recently heard a real estate salesman say that in a sales pitch to sell expensive lots. If you have taken a long intercontinental trip by plane or ship, you might tend to agree. Water covers roughly 75% of the surface of our planet. With our huge growth in human population, land suitable for human occupation is becoming scarce. Is there too much water on Earth? The answer to that question is a resounding “NO!!!” Every living cell depends on water, but the properties of water combined with its distribution and abundance cause its importance to go far beyond that fact.

Water is highly reflective. Ocean water reflects much of the light energy from the Sun back into space, so Earth’s surface does not become overheated. This is especially important because most of our surface water is in the Southern Hemisphere. When Earth’s orbit brings it closest to the Sun, the Southern Hemisphere faces the Sun. There is a massive potential for solar energy to overheat the land. Since most of Earth’s land area is in the Northern Hemisphere and most of the surface water is in the Southern Hemisphere, overheating doesn’t happen. This designed distribution of the land masses combined with the reflectivity of water protects us from overheating. We do not have too much water on Earth.

Water is a unique substance in terms of thermodynamic values. It is the standard frame of reference for specific heat and has a value of 1 calorie/gram. Water’s freezing and boiling points are zero and 100 degrees Celsius, which is a minimal difference in temperature compared to other substances. Water also has a high specific heat which means it can store the energy it absorbs better than other materials. Water’s heat of vaporization is 539.6 calories per gram, which is huge. The heat of vaporization is the amount of energy required to change water from the liquid state to the vapor state without changing its temperature. The capacity of water to store heat radically controls the climate. Water absorbs energy from the Sun and carries it in various ocean currents around the world. We don’t have too much water on Earth because it moderates the climates along all coasts of our planet. Planets and moons with no surface water experience violent storms and enormous variations in temperature.

Because water is a polar molecule, it can dissolve virtually all salts and many chemicals essential for life. The polar nature of the water molecule also allows it to be a condensation nucleus for the production of rain. As the oceans warm in tropical areas, the rate of water evaporation increases. As the water vapor cools, it needs something on which to condense. We all know that when the humidity is high, water condenses on our windows, our grass, and virtually any other exposed surface. To make rain, the water condenses on particles in the atmosphere. On land, the particles would be dust. Over the oceans, the particles are salt which is also a polar molecule and provides the ideal structure to make rain.

These simplified explanations should help us see that there is not too much water on Earth. We need all of that water to make life on Earth possible. Our climates, our movement of heat, the production of rain and snow, and the very formation of life itself all depend on water.

Genesis 1:2 tells us that God established water as one of the building blocks that allowed the Earth to support life. Verses 9-10 tell us that the “waters were gathered together into one place” and that those waters “were called seas, and God saw that it was good.” Proverbs 8:24 finds wisdom speaking of God’s creation. Wisdom tells us that water was created before there were mountains, hills, or dust. It has taken science thousands of years to understand why there is so much water. Today we now know that it is not only good, but it is vital to our existence.
–John N. Clayton © 2019

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Human Wildlife Management

Human Wildlife Management of the Red Wolf
Environmentalists claim that animal species are becoming extinct and that we must preserve their DNA. The problem with this claim is that as the environment changes, animals may not be able to survive. An example is animals that have a very specialized diet, such as eating mostly on bamboo. If something wipes out the bamboo, what are these animals to do? We can save samples of their DNA, but moving them away from their natural habitat to a different place where bamboo is growing may not be the answer. It can expose them to predators and diseases that were not present in their original environment. We call this human wildlife management. While in some cases it can correct what humans have done, there are many cases where humans are not the cause. Massive investments may only delay the inevitable extinction of an animal.

The red wolf is a current example of human wildlife management. Red wolves were once common across a large region of Texas and Louisiana. The red wolf was classified as endangered in 1967 and extinct in 1980, although some were living in zoos and wildlife facilities. In the 1970s, the U.S. Fish and Wildlife Service bred red wolves and in 1986 introduced them to the wild in North Carolina. By 2006 there were over 100 wolves in North Carolina, but the population was not healthy. Many were killed by farmers and ranchers so that by April of 2018, fewer than 50 remained.

Recently a pack of red wolves was found on Galveston Island in Texas. At first, red wolf advocates were delighted. Then they became dismayed when scientists found that the Galveston wolves had DNA that was different from the original red wolves. The change in the DNA may be in part from coyotes in the area. We would suggest that God created red wolves to occupy a particular environmental niche. When that niche was changed, no matter what changed it, another design feature kicked in. That design feature which God has placed in living things is hybridization.

Hybridization is the interbreeding of two animals who are genetically close but not identical. The offspring produced by this mix of genes is often stronger and more resilient than either of the parents. When the Endangered Species Act was implemented in the 1970s hybridization was considered to be something to avoid. The reality is that God’s design allows animals to continue to prosper through hybridization.

Elizabeth Heppenheimer is a biologist from Princeton who has been studying the wolves on Galveston Island. She says, “Now we know hybridization is relatively common in natural systems and does not always have negative consequences, but the policy (of human wildlife management) hasn’t quite caught up with this notion.”

God’s methods work, and when humans try to replace God’s design with human judgments and controls, the results are frequently not what is best.
–John N. Clayton © 2019

Data from “DNA Discovery” by David Warren, Associated Press January 15, 2019.

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Ice Algae – Designed Polar Grass

Ice Algae
Have you ever wondered how animals that live near Earth’s North and South Poles survive? What do they eat, and how can any kind of food chain exist? The answer to this is ice algae.

Unlike most plants, algae do not have flowers, roots, stems, leaves, or vascular tissue. However, ice algae, like most plants, provide the starting point for a food chain. In this case, it is a food chain in very cold places. Tiny krill, penguins, seals, polar bears, and blue whales all depend on ice algae to survive. In 2016 Dr. Thomas Brown of the Scottish Association for Marine Science studied polar bears and found that 86% of the polar bears’ nutrition came from a food chain that originated with ice algae.

Ice algae have chlorophyll so they can use whatever light is available for photosynthesis. There are a variety of types of algae that live in different conditions. Some live on the surface of the ocean, some on the floor of the ocean, and some in or on the ice itself. Ice algae produce fatty acids which supply nutritional value for animals that live in what would otherwise be a nutritional void. Because there is ice algae, animal life is abundant under, in, and around the ice at both poles.

God has provided interesting food chains all over the planet. As we study global warming and its effect on life in places like the polar seas, we see more of His handiwork and learn why we need to take care of it. The admonition of Genesis 2:15 to “take care of the garden to dress it and keep it” applies as much to us today as it did to Adam and Eve.
–John N. Clayton © 2019

Data from National Wildlife, February/March 2019, pages 14-16.

 

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Seeing With Whiskers

Seeing with Whiskers
Have you ever wondered how cats can navigate in a dark room? Dr. Hendrick Van der Loos is an expert on the role of whiskers in animals. His research team at the University of Lausanne in Switzerland has shown an amazing demonstration of what cats can do by seeing with whiskers.

They blindfold cats and put them in a room with toys and other obstacles scattered around. The cats could navigate the room as well as cats with full sight because of their whiskers. The ancient Egyptians believed that cats had mysterious powers because they observed cats hunting mice in complete darkness.

We now know that not only cats but also walruses, pigs, seals, moles, and even whip-poor-wills have whiskers designed to meet their specific needs. The secret in all of these animals is that they possess specialized touch-sensitive hairs called vibrissae which are embedded deeply in the skin and resting in tiny sacs of fluid which pivot like a straw in a bottle of soda-pop. Brushing a whisker generates an electric signal in the fluid which is surrounded by nerves. The nerves feed the signal to the brain. This system is so sensitive that animals can detect the change of air currents around an object. They are seeing with whiskers which serve essentially as a tactile third eye.

A blindfolded cat can catch and kill a mouse. High-speed photography shows that a cat on the prowl for a mouse holds its whiskers in a fan-shaped pattern. Just before pouncing, the cat shifts its whiskers forward around its mouth. When the cat makes contact with the mouse, the whiskers tell the cat which way the mouse is dodging. As the whiskers wrap around the mouse, the cat can detect ahead of time which direction the mouse is trying to go.

A walrus will cruise around the floor of the ocean with its rump up and its head down stirring up the sea floor, so sight is useless. The walrus roots through the clouded water sorting out anything that might be good to eat by seeing with whiskers. Since walruses feed at night, there is the added benefit of being able to eat 24 hours a day. Moles have whiskers around their feet and tails which can detect insects in total darkness underground. Whip-poor-wills, nighthawks, and nightjars have whiskers near their beaks and are active after dark.

Human whiskers are just hair, and they serve only decorative purposes. True whiskers were designed by God to provide special tools for animals to survive. They allow the normal processes of life to be carried on 24/7, and they speak eloquently of God’s wisdom and design in the world all around us.
–John N. Clayton © 2019

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Moving Heat Energy

Moving Heat Energy
Winter always reminds us of how important it is to have ways of moving heat energy from one place to another. We are considering how the complex heat transfer system is another evidence for God’s creative wisdom. Yesterday we looked at heat transfer by radiation. There are two more methods.

A second way of moving heat energy is by conduction. When you put a spoon into a hot cup of water the molecules that make up the spoon begin to vibrate faster as they absorb heat energy from the water. As one molecule gets energy, it bumps into the next molecule, and it also starts to vibrate. This happens down the length of the spoon, and eventually, the heat is conducted to your skin.

How fast heat conduction happens depends upon the size, mass, and density of the material in the object conducting the heat. Gases have poor conductivity because their molecules are far apart. A winter coat has lots of spaces between the fabric molecules filled with air. Fur has air spaces between the hairs and inside the hair strands themselves. Those low-density spaces insulate against heat transfer. You have heard the old story about never putting your tongue on a very cold metal object. The reason is that the water in your tongue conducts heat away to the metal surface which is very dense. The heat transfer process happens so fast that the water in your tongue freezes.

A third method of moving heat energy is by convection. Heating air or water is difficult by radiation alone or by conduction alone. The materials are transparent, so they absorb radiation poorly. Conductivity is slow and limited as to how far the heat can travel. What happens is that molecules change their density as they are heated or cooled. When heated, the gas or liquid becomes less dense it rises taking heat energy with it. As it cools, it sinks because it becomes denser. The motion mixes the hot and cold in the process we call convection.

The amazing ability of water to change its density as it is heated and cooled allows lakes to form ice on the surface rather than on the bottom. Water was designed to have its lowest density at 32 degrees Fahrenheit. It has a higher density both above and below that temperature. A very complex chemical property of water is designed to handle the heat energy by becoming more dense down to 32 degrees and then less dense as it freezes into ice. You can read more about this essential characteristic of water in THIS PREVIOUS POST and in our book Dandy Designs Volume 3, available HERE.

We take for granted the various methods of moving heat energy in and around us, but the complexities of this design are amazing. My physics students love to see how this allows us to exist on this planet.
–John N. Clayton © 2019

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Heat Transfer Design

Heat Transfer Design
During this time when record cold temperatures have covered much of the United States, we should consider the design of heat transfer. One of the evidences for the existence of God is the wisdom built into the physical creation that makes it possible to move energy. God created a system of heat transfer design that is far more complex than most of us realize or can imagine.

The primary source of heat for the surface of our planet is the Sun. The question is how heat from the Sun can travel 93 million miles to Earth through what is essentially a vacuum. Realize that there is no substance between the Sun and us, so the heat can’t travel by contact. Atoms are constructed in such a way that they release excess energy by generating small energy packets called photons. Photons from the Sun carry the energy to Earth.

Photon particles are very strange. They have an electric property and a magnetic property, so they are called electromagnetic radiation. Photons have no thickness. They are two dimensional, vibrate with a frequency, and can exist only if they are moving. If you stop a photon, it disappears, and its energy is absorbed by whatever it struck.

Because photons are particles, they can travel across the vacuum of space from the Sun to the Earth. Their vibration frequency determines how we perceive them. We have different names for the frequencies. Xrays, gamma rays, ultraviolet, infrared, radio waves, and visible light are different only in their frequencies. The higher the frequency, the more energy is involved. Gamma rays have a much higher frequency than visible light, so they pack more energy.

Everything radiates some energy, even our bodies, but this is just one way heat is transferred. Besides radiation, heat transfer design also involves conduction and convection. We take for granted the various ways in which heat is transmitted in and around us, but the complexity of heat transfer design is amazing. It is that design which allows us to exist on this planet. We will look at the other two heat transfer methods tomorrow.
–John N. Clayton © 2019

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Why Don’t Birds Have Ears?

Why Dont Birds Have Ears?
Someone asked, “Why don’t birds have ears?” Actually, birds do have ears. What they don’t have is what biologists call “auricles” and zoologists call “pinnas.” Those are the things that stick out from the heads of people and most mammals and that we usually call “ears.”

The most critical ear parts are not outside but inside the head. Birds have those parts. Most birds have excellent hearing in spite of not having visible “ears.” The ear openings are not visible because they’re covered with feathers. The feathers are often designed to channel the sounds into the ear canal, just as our auricles are.

Parrots have such good hearing that before the invention of radar they were used to detect the engine hum of distant enemy airplanes. They would squawk a warning of danger. Migrating birds use sounds along with other clues to find their destination. Homing pigeons listen for sounds to help guide them to their familiar roost.

Another design factor to consider is wind resistance. What would happen if birds had ears that stuck out from their heads? It would slow them down in flight. Also, consider the noise you hear when facing into the wind on a blustery day. Without the pinnas, birds don’t pick up so much wind noise when they’re flying.

So now you know the answer if someone asks, “Why don’t birds have ears?” Don’t worry about not seeing ears poking out from a bird’s head. It’s just another indication of good design by the Master Designer of life.
–Roland Earnst ©2019

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Largest Body Organ

Largest Body Organ - Skin
As you think about all of the organs in your body and how important they are, don’t forget the largest body organ. It’s also the one that is most visible—your skin.

Have you ever considered how incredible your skin is? The hands of a laborer may be rough like sandpaper, but his abdominal skin could be smooth and soft. The calves of your legs have skin bonded tightly to a muscle layer. The skin on your elbow can be lifted loosely in rolls. If you used a microscope to examine the skin of our scalp, lip, heel, and finger, you might think you were studying sample from different species.

Your skin is the largest body organ, and there is no other organ like it. It flexes, folds, stretches, and bends around joints. It’s sensitive to touch. The skin of your finger pads is sensitive enough to detect a grain of dust on a smooth surface or read Braille letters in a book. When you blush (something that only humans do), the blood vessels of your skin suddenly rush many times more blood than usual. Your skin even regenerates itself when it’s damaged.

Your skin shows emotions, cools and insulates your body, protects you from germs, serves as a receptor for all kinds of stimuli, and gives you that unique appearance. We often cut off the hair growing out of our skin or add some substance to soften and beautify our skin. We seldom take a moment to realize what a fantastic organ it is.

Of all the vital organs of your body, your skin is the most visible. Skin color or texture may vary from person to person, but regardless of those factors, it protects what is inside. Your largest body organ is another incredible design by a Master Designer.
–Roland Earnst © 2019