Almut Kelber is a sensory biologist at Lund University in Sweden. For many years Dr. Kelber has been studying the super night-vision in frogs that allows them to hunt and move about in extremely low light levels.
In the August/September issue of National Wildlife (page 10) the group that Dr. Kelber leads reports that amphibians have unique rods or photoreceptor cells in their retinas that are not found in any other vertebrates. These receptors allow frogs not only to see in the dark but to see colors in extreme darkness. Humans can’t distinguish colors in low light, but frogs can see colors in light levels where human eyes would not see anything at all. Dr. Kelber did not expect to find that “these animals can see color in extreme darkness, down to the absolute threshold of the visual system.”
Over and over we see specific equipment built into living things that allows them to survive in their environment, defend themselves against predators, and find unique access to food. You can believe that this is a simple trial and error situation, where having the equipment promotes survival and not having the equipment is lethal. Or you can believe that an intelligence designed and engineered these structures to allow our planet to be a unique oasis of life.
The media seems to be obsessed with the quest to find life in outer space. They are especially interested in a “Mr. Spock” type of life–human in appearance but with super powers. SETI (Search for Extra-Terrestrial Intelligence) has been going on now for almost 60 years. Billionaire Yuri Milner has committed $10 million dollars per year until 2025 to keep the SETI project listening for E.T.
We have pointed out many times that finding life in space would not invalidate Christianity or the Bible in any way. Humans seem to be dedicated to finding an alternative to God’s way as revealed in His Word. Many seem to believe that finding an advanced alien civilization would be such an alternative.
The September 2017, issue of Astronomy magazine, has an interesting article by associate editor John Wenz. The article on pages 34 and 35 is cleverly illustrated with cartoons by Theo Cobb. It shows 16 different “alien” cases that all turned out not to be messages from E.T. Wenz traces the misguided attempts to find alien signals from outer space that would indicate intelligent life out there wanting to interact with Earthlings. He goes back to 1960 when SETI’s first project called OZMA claimed to have received a signal from Epsilon Aurigae, a star about 2,000 light-years from Earth. The team, including Frank Drake who founded SETI, thought that they were receiving a signal from space, but it turned out to be terrestrial in origin.
Evolutionary biologist Richard Dawkins is an outspoken atheist. He has made harsh statements against all religions. In his book The God Delusion, he uses the vilest terms to describe “the God of the Old Testament.” Then he goes on to say that God is not only a delusion but a “pernicious delusion.” However, in a backhanded way, Dawkins admits anti-Christian discrimination. He has admitted that Christianity is treated differently from Islam, and coincidentally that Christians are more gracious and forgiving than Muslims.
Dawkins was scheduled to speak in August at an event in Berkeley, California, sponsored by a public radio station. Dawkins was supposed to be speaking concerning his newest book coming out this month–Science in the Soul: Selected Writings of a Passionate Rationalist. Residents in the San Francisco Bay area reported to the radio station some comments concerning Islam in The God Delusion. They also pointed out a tweet from Dawkins in which he said, “”Islam is the greatest force for evil in the world today.” When the powers at KPFA radio heard that, they promptly canceled Dawkins’ speech. They sent a letter to those who had purchased tickets telling them, “We had booked this event based entirely on his excellent new book on science, when we didn’t know he had offended and hurt–in his tweets and other comments on Islam, so many people.”
A response letter from the Dawkins Foundation referred to him as “one of the greatest intellects of our time” and called the accusation that he had used “abusive speech” toward Muslims “baseless.” Dawkins himself stated, “The idea that I have engaged in abusive speech against Islam is preposterous…I have indeed strongly condemned the misogyny, homophobia, and violence of Islamism.”
In a letter written to the radio station by Dawkins, he stated, “I am known as a frequent critic of Christianity and have never been de-platformed for that. Why do you give Islam a free pass?” In other words, Dawkins can feel free to criticize and mock Christianity, but not Islam. Could that be because Christians are more gracious and forgiving? Could it be that he can insult Jesus and his followers and not fear for his life? Would he be able to do the same against Mohammad and his followers? I don’t think so. His words are a backhanded compliment to the faith he has frequently criticized.
There is another aspect of the decision by the radio station. The public radio station canceled the speech stating “KPFA does not endorse hurtful speech” and “we do not support abusive speech.” Would they have canceled because of Dawkins’ “hurtful speech” or “abusive speech” toward Christians? His vile words about the God of the Bible in his book The God Delusion would certainly qualify as “hurtful” and “abusive” toward the faith of Christians and Jews. I am confident that the radio station would not have canceled because of those words. Even Richard Dawkins admits anti-Christian discrimination exists in the media and academia.
Mars researchers have discovered a new issue in their attempts to find life on Mars—a toxic Martian cocktail.
One reason scientists believed that life might be possible on Mars was that tests from Martian soil samples show chemicals that are a potential energy source for bacteria. However, because Mars has such a thin atmosphere, ultraviolet radiation levels are very high. A Recent sampling of the Martian soil has also shown that it contains perchlorates, which are toxic to living cells. An article in Scientific Reports on Nature.com said that the UV rays combined with perchlorates as well as iron oxide and hydrogen peroxide together give what the researchers are calling a “toxic cocktail.” The bacteria Bacillus subtilis, which is often found in spacecraft and can survive extreme conditions of space, is wiped out in 30 seconds when exposed to this cocktail.
In other words, the surface soil on Mars can kill living cells. On July 6 Popular Science reported on these findings and indicated that you would have to go six feet below ground to get away from this toxic mix. Surface expressions of life on Mars are almost certainly not going to be found. Deep underground testing is the only possibility for finding life on Mars.
The mass media often oversimplifies what it takes to make life possible on a planet. This oversimplification continues to be bombarded by the facts. Just being in the zone where water can exist as a liquid, called the “habitable zone,” doesn’t qualify a planet as a dwelling place for life. The “uninhabitable zone” keeps getting larger.
One of the ongoing mysteries about the solar system is the question of how the orbits of the planets and other objects function. If the solar system consisted of only the Sun and the Earth, the motion of the Earth could be easily calculated by a simple formula. When you add other planets and moons, all tugging and pulling on Earth in different ways at different times, no simple mathematical formula explains what is taking place. The solar system seems to be incredibly stable, but why should that be? Chaos mathematics helps us see design in the solar system.
For hundreds of years, astronomers and mathematicians have wrestled with the questions that relate to the consistency of the solar system. Why does Mars not get pulled out of its orbit and crash into Earth? Why does Earth not drift closer to the Sun when it is pulled on by the gravitation of the inner planets? How does the Moon’s gravity affect Earth’s orbit and rotation?
Modern computers have given us spectacular advances in understanding planetary motions. The simple calculation gets complicated when you add a second planet to the solar system. With three objects tugging on each other and the Earth no longer follows a precisely elliptical orbit. Earth experiences different gravitational pulls at different times depending on the distances between the objects. With each planet, moon, and even asteroid the calculations become more difficult.
Since no simple formula accurately describes the planetary motions, French astronomer Jacques Lasker and others have used an advanced technique called chaos mathematics. The term chaos in this application does not mean a disorderly system. Chaos refers to situations in which the behavior of a dynamic system depends sensitively on the initial variables that control the final outcome. In this case, each of the planetary gravitational effects is written as an equation called a differential equation. By carrying all of the equations out to include many variables and then averaging the equations, Lasker was able to describe the orbits very successfully. Other scientists have found that adding other influences such as the effects of relativity increase the accuracy and predicted stability of Earth’s orbit.
The importance of this work is that it shows why the solar system consists of many objects and not just the Earth and Sun. A resonant system of gravitational forces is needed to keep the stability and consistency of our orbit around the Sun. Chaos theory and the use of computers that can do incredibly complicated calculations have opened the door to a better understanding of our complex solar system.
Romans 1:19-22 tells us that we can know that there is a God through the things He has made. Psalms 19:1 and Isaiah 40:26 tell us to examine the heavens and see the handiwork of God. Chaos mathematics tells us that the initial state is crucial to the outcome. God established the initial state which has given us our present stable solar system.
Chinese scientists have conducted at least three experiments to create genetically modified human embryos. Now, MIT Technology Review reports that a team of scientists in the United States has edited the DNA of human embryos. The experiment was performed at Oregon Health and Science University, a public university in Portland, under the leadership of Shoukhrat Mitalipov. It is apparently the first time this has been done in the United States, and it involved a greater number of embryos than the Chinese experiments.
Mitalipov, who was born in the former Soviet Union and received his Ph.D. in Moscow, came to the U.S. because there was a lack of funding for genetic experimentation in his home country. Since coming to the U.S. he has cloned monkeys and human embryos. This is the first time for editing the DNA of a human embryo.
The scientists used a gene-editing tool called CRISPR, which we have reported on before. The goal of the experiment is supposed to be to find a way to correct genetic defects in humans. The sperm used to fertilize the embryos came from a man with a genetic defect. The embryos were destroyed after a few days because in the United States it is illegal to allow genetically modified human embryos to develop into full-term babies.
In February the U.S. National Academy of Sciences gave support for creating gene-edited babies if the purpose is the elimination of serious genetic diseases. Genetically modified human embryos can develop into gene-modified humans who will pass on the genetic changes to their offspring. This may offer hope for eliminating genetic defects. However, it also has implications for the nightmare scenarios of a science-fiction movie. When humans start to play God by manipulating the DNA of our children, what if they make a disastrous mistake? The United States Intelligence Agency listed CRISPR as a potential “weapon of mass destruction.”
Beyond the implications of Frankenstein-like creatures, there is the aspect of “designer children.” DNA could potentially be edited to select the sex, physical features, and even intelligence of an unborn child. So far that is illegal in the United States, but not in other countries. One of the problems the Chinese experimenters encountered is called “mosaicism,” in which the change to the DNA is not taken on by all of the cells. The implications of a person with multiple DNA codes in different cells is not fully understood. Other CRISPR errors referred to as “off target” effects could result in serious genetic defects. Mitalipov’s team claims to have those problems under control.
The report from this U.S. experiment should be published soon, and it will certainly be in the news. Christians should be concerned about where this is leading. Do humans have the right to play God with our DNA? What could be the result of “off target” mistakes? What about the ethics of creating human embryos for experimentation and then destroying them? Do the possible breakthroughs in the elimination of genetic diseases outweigh the dangers? What about the moral cost to our society as we go down this road?
One thing you can be sure of is that humans will continue to create genetically modified human embryos. If it doesn’t happen in the United States, it will happen in other countries. You can also be sure that there will be some scientists who will do so with less than pure motives. In Mary Shelley’s classic book telling about a scientist’s desire to create a new species, Victor Frankenstein said, “A new species would bless me as its creator and source; many happy and excellent natures would owe their being to me. No father could claim the gratitude of his child so completely as I should deserve theirs.” The power to become a god creating new species of humans can overpower pure motives as it did with Victor Frankenstein. The outcome could be even more tragic than in the novel.
“Majesty in Miniature” is the title of an interesting article in the July 2017 issue of National Geographic (pages 99-118). The article is about the amazing hummingbirds.
Scientists have had a hard time getting data as they try to understand how hummingbirds do what they do. The birds fly at speeds up to 35 mph (56 kph) and they have a “reverse gear.” Their metabolic rate is the highest of any vertebrate on the planet. For every minute they are in flight, they drink more than 12 ounces (355 ml) of water. They consume more than their body weight of nectar every day. Their tongues lap up to 15 times a second. Proportionally their brain is one of the largest in the animal kingdom making up 4.2% of their body weight. It is only with the advent of high-speed cameras and advanced wind tunnels that some of the mysteries of the majesty in miniature have been answered.
Hummingbird brains have a large hippocampus which allows them to remember locations. Their brain has a large lentiformis mesencephali motion sensor which gives the bird stabilization when flying. It has a small arm wing which allows wrist motion to control a larger area of the wing leading to a more powerful upstroke. When a hummingbird hovers, it rotates its wings between the upstrokes and the downstrokes making a figure eight motion. This motion creates vortexes that allow both the downstroke and the upstroke to provide lift. Birds such as pigeons push down to propel forward, but there is no lift in the upstroke. The design of the hummingbird wing gives it the unique ability to get lift out of both strokes.
For many years the papers have reported on anthropologists finding the remains of human ancestors in Ethiopia, eastern Africa. In the past several weeks there have been headlines saying that “the oldest fossil of Homo sapiens” has been found in Morocco which is in northeast Africa. It seems that each new find makes human evolution theories more confounded.
Anthropologists working in Jebel Irhoud, Morocco, found fossils they claim are much older than those found in east Africa. The specimens have a lower jaw which matches Homo sapiens but the brain cases are long and low which is more indicative of apes or monkeys. They also found 14 stone artifacts which they associated with those fossils. The original report said that the tools were found with the fossils. Later reports indicate the tools were found in the strata above the fossils indicating they might not have been produced by those individuals.
Scientific theories about how humans came into existence are always changing as new data becomes available. The classic theoretical model of human evolution in recent years has maintained that humans arose in east Africa and migrated elsewhere. That is apparently not the case, but this new find will be debated and discussed by the experts for many years.
The Bible does not address the evolution of apes or monkeys. We are simply told that animals reproduced after their kind. There is no indication of how many kinds there were, or how much their genetic makeup varied as the years went by. The Bible says that God created man and woman in His own image. That spiritual quality of humans is the thrust of the biblical account. Modern human’s origin in the Fertile Crescent area of what is now Iraq is not questioned by very many people. That is also what the Bible tells us. Human migration throughout the world and the racial variations that developed to help people adapt to different climates is without a doubt.
Does moderate drinking cause physiological problems? We see a lot of misleading information in the media about the effects of alcohol. There have been studies linking consumption of alcohol to longer life expectancy. We have pointed out that the agents causing health benefits from drinking wine are the flavonoids in grapes. Alcohol is not the agent of health benefits.
A recent study published in the British Medical Journal reports that long-term studies show a negative effect in the brain of moderate drinkers. The study defined moderate drinking as weekly doses of 8 to 12 small glasses of wine, bottles of beer, or shots of liquor. It followed 527 British citizens for 30 years, and the subjects were “predominantly white middle-class men.”
The study showed that moderate drinkers were more likely than nondrinkers to develop brain changes that might precede or accompany memory loss. They also were more likely to show a more rapid decline in a language fluency test. Moderate drinkers were three times more likely than nondrinkers to show shrinkage of the hippocampus area of the brain–a change that accompanies dementia. Heavy drinkers showed the most shrinkage.
Most of us have had some experience with lightning. The chances are that our experiences have been terrifying and destructive, and we may view lightning as a bad thing. You may wonder if we need lightning. The short answer is, “Yes.” Lightning is a good thing, and there are many things we are still learning about it.
Lightning helps produce the nitrates and other nitrogen compounds that are needed by all living things on Earth. The process is called “nitrogen fixation, ” and it is vital to our very existence. Water droplets in the air carry an electric charge. That charge can accumulate to dangerous levels unless there is a way to neutralize it. That’s where lightning comes in.
One of my favorite demonstrations as a physics teacher was to get a very small flow of water going from a faucet and then bring a charged rod up to the column of water. The stream of water will bend in response to the charge. That is because the polar nature of the water molecule allows it to have electrical properties. Because of water’s electrical property, lightning is generated to release nitrogen from the air and deposit it in the crust of the Earth as nitrates and other nitrogen compounds that plants need to grow. The plants then feed and protect the animals and us.
Low Earth orbit satellites and high flying airplanes have recently made us aware of other properties of lightning. We have learned that red sprites occur and they have been photographed above large thunderstorms. Other upper atmosphere lightning phenomena include blue jets and terrestrial gamma flashes. Scientists are studying the highly complex nature of lightning to understand how the system works.
The Bible makes many comments about lightning. It tells us that lightning is made with water (rain) even though people at that time totally ascribed lightning to supernatural causes. (See Jeremiah 10:13 and 51:16). Lightning is referred to as a tool of God. (See Job 28:26; 36:30; 37:3, 11, 15; 38:24, 25, 35.)
