Tag: physics

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Grand Design and Stephen Hawking

The Grand Design
In our March 15 article on this site, we mentioned the death of Stephen Hawking. We noted some of the amazing things that Hawking accomplished. We have received some mail about Hawking and his role as an atheist. How much Hawking’s battle with health issues affected his view of God is hard to answer, but his resistance to believing in God is undeniable as shown in his book The Grand Design.

In his otherwise excellent book A Brief History of Time (Bantam Books, 1988), Hawking did a masterful job of explaining the second law of thermodynamics. He even intimated that the second law was supportive of the existence of God. That was something Hawking didn’t want to do, so at the end of the book he invented something he called “virtual time.” He couldn’t define virtual time, and it is not testable and therefore is not science. By accepting virtual time, Hawking was able to deny that there was a beginning and that the beginning had to be caused by an entity outside of space/time.

Hawking’s first wife was a believer in God and expressed concern about the integrity of the virtual time argument. Many have suggested that Hawking’s belief system was all that the last chapter of the book was trying to defend.

In his 2010 book The Grand Design, Hawking declared that God is not needed to explain the existence of the universe. In an interview, he said, “There is no heaven or afterlife… that is a fairy story for people afraid of the dark.” That was a statement of faith based on the imaginary concept of virtual time. Virtual means unreal. A grand design based on virtual time is not real.

Hawking was an outstanding thinker in cosmology, and he overcame enormous challenges to continue to live a productive life far beyond what was expected. It is sad that he allowed bias to shadow his thinking in areas outside of his specialty. A friend of mine with a Ph.D. in physics says, “My Ph.D. in every-day life really stands for post hole digger.” Like Richard Dawkins and other popular atheists, Hawking was incredibly ignorant in spiritual matters, but a genius in his own field of expertise. Let us admire and praise his professional accomplishments, but not attach much significance to his religious opinions. Tomorrow we will examine “virtual faith.”
–John N. Clayton © 2018

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Stephen Hawking’s Death

Stephen Hawking's Death
On the morning of March 14, news media carried the news of Stephen Hawking’s death. His family announced, “We are deeply saddened that our beloved father passed away today.”

Hawking was a brilliant physicist and cosmologist and probably the best-known living scientist. He wrote the book A Brief History of Time which was published in 1988. That book holds the Guinness Book of World Records title for being on the Sunday Times (London) bestseller list for an amazing 237 weeks. The book has sold ten-million copies and has been translated into 40 languages. Along with Roger Penrose, Hawking devised the theory that the universe began with a singularity in what has come to be known as the “Big Bang.” In his 2010 book The Grand Design he declared that God is not needed to explain the existence of the universe. In an interview, he said, “There is no heaven or afterlife… that is a fairy story for people afraid of the dark.”

Stephen Hawking lived a remarkable life for a person with a form of ALS, a motor neuron disease. He was diagnosed at age 21, and the doctors gave him two years to live. He survived until age 76 but spent most of those years in a wheelchair unable to move. He could only talk with the aid of a computerized voice.

We are saddened to know that Hawking was never able to accept the Christian faith of his first wife. In the announcement of Stephen Hawking’s death, his three children said, “We will miss him forever.”

We have recently published two postings about Stephen Hawking, and we encourage you to read them by clicking here and here.
–Roland Earnst © 2018

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Chemical Elements and the Laws of Nature

Chemical Elements and the Natural Laws
We are amazed to realize that everything in the world around us is made up of fewer than 100 different chemical elements. Those elements are combined to form vast numbers of different compounds, and those compounds come together to make up everything including air, soil, plants, and our bodies.

Even more amazing is that those chemical elements are all made up of the same three particles called protons, electrons, and neutrons. The only difference between the elements is the quantity of each of the particles in their atoms. The periodic table gives an organized way to look at the elements based on the number of protons in the nucleus of each atom. It shows all of the natural elements plus more than 20 others that have been created in laboratories with particle accelerators–machines that smash atoms together.

The natural chemical elements range from hydrogen with only one proton to uranium which has 92. The periodic table, first conceived in the nineteenth century, shows which elements react similarly with other elements to form chemical compounds. The ability of the various elements to combine with other element makes possible every compound which makes up every substance on Earth.

Each atom of each element has protons in the center called a nucleus and electrons surrounding the nucleus in “shells.” The atoms of some elements also have neutrons in the nucleus. The strong interaction in the nucleus binds the protons and neutrons together. At the same time, the electrical or Coulomb force causes the protons to repel each other. As the number of protons approaches 100 or more, the repelling force overcomes the attracting force, and the atom becomes unstable. For that reason, the larger atoms only exist in the laboratory and only for very short times.

If you could add the mass of all of the protons, neutrons, and electrons in an atom, you would find that the total mass is more than the mass of the atom itself. That extra mass is found in the energy that binds the nucleus together. Einstein’s famous equation E=mc^2 indicates that matter and energy are different forms of the same thing. In other words, the extra mass has become the energy that binds the nucleus together.

Physics and chemistry are subject to laws which control all of the universe. Without those laws, the universe could not exist, and neither could science. Scientific experimentation is based on the consistency of the natural laws which came into existence when the universe was created. Science is unable by experiment to study what happened before the creation of those laws. Why do those laws exist? Why does anything exist? We believe the answer can be found in Genesis 1:1.
–Roland Earnst © 2018

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No-Boundary Proposal and the Big Bang

No-Boundary Proposal and Big Bang
The universe had a beginning. For over two thousand years from the time of Aristotle until the twentieth century, the accepted view was that the universe was eternal. It took much of the twentieth century for the evidence to compel scientists to concede that there was a beginning to the cosmos. Finally, in the twenty-first century, it was fully confirmed by observations in space. A thousand years before Aristotle, Moses wrote, “In the beginning, God created the heavens and the earth.” Some scientists are still trying to get around the problem of a beginning with the No-Boundary Proposal.

Why was science reluctant to accept the fact that the universe is not eternal? The simple reason is what that implies and the questions that it creates. If the universe had a beginning, that implies that there is something beyond the material world that we observe. The big question then becomes, “What (or Who) brought everything into being?” This leads to the questions, “Why are we here?” and “What is our purpose?” Those are questions that science is afraid to handle. Indeed, those are questions that science cannot handle.

If there was a beginning, there must have been a beginner…a Creator. That Creator, whether personal or impersonal, would have existed “before the beginning.” Science now suggests that the beginning, or the “Big Bang” as it was derisively dubbed by atheist astronomer Fred Hoyle, was not only the starting point for matter and energy, but also for space and time. It was even the starting point for the laws of physics. So how can science explain the beginning? Brilliant scientists have been working on that problem and some have settled on the No-Boundary Proposal.

Last Sunday on Neil deGrasse Tyson’s National Geographic Channel TV show StarTalk, Stephen Hawking said that he knows the answer. Hawking is probably the world’s best-known living physicist and cosmologist. The heart of Hawking’s proposal of what came before the beginning is the No-boundary Proposal. This proposal, according to Hawking, is that before the Big Bang, time was “bent.” According to Hawking’s earlier statements, if we could go back before the Big Bang, we would find that time (and I presume space and matter/energy), “was always reaching closer to nothing but didn’t become nothing.” In other words, there never was a point where something was produced from nothing. There was never nothing. It just seems that way from our perspective. (*You can see the further explanation by Stephen Hawking on the StarTalk show below.)

In a previous lecture, Hawking stated: “Events before the Big Bang are simply not defined because there’s no way one could measure what happened at them. Since events before the big bang have no observational consequences, one may as well cut them out of the theory, and say that time began at the big bang.” This seems to me like a clever way of getting out of speculating on what caused the beginning. It is like saying that the beginning was going on forever and so the beginning never really had a beginning.

Maybe we should call the No-Boundary Proposal the No-Beginning Proposal. It seems to me that this takes us back to Aristotle’s concept of an eternal universe. The difference is that this new proposal says the universe was much more compact before the “beginning.” Is this just a way of getting around the simple statement of Moses in Genesis 1:1?
–Roland Earnst © 2018

*These are Hawking’s words in his interview with Neil deGrasse Tyson, “According to Einstein’s general theory of relativity, space and time together form a space-time continuum or manifold which is not flat but curved by the matter and energy in it. I adopt a Euclidean approach to quantum gravity to describe the beginning of the universe. In this, ordinary real time is replaced by imaginary time which behaves like a fourth direction of space. In the Euclidean approach, the history of the universe in imaginary time is a four-dimensional, curved surface like the surface of the Earth but with two more dimensions. Jim Hartle and I proposed a “no-boundary” condition. The boundary condition of the universe is that it has no boundary. In order terms, the Euclidean space-time is a closed surface without end, like the surface of the Earth. One can regard imaginary and real time as beginning at the South Pole which is a smooth point of space-time where the normal laws of physics hold. There is nothing south of the South Pole, so there was nothing around before the big bang.”
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Expanding Universe and What It Means

Expanding Universe
We live in an expanding universe. For thousands of years, from Aristotle to Einstein, scientists thought that the universe was eternal. Einstein’s equations proposed in his general theory of relativity in 1915 seemed to indicate that the universe was not stable. Einstein thought it was a mistake and tried to correct for the “error” by creating a variable called the “cosmological constant.” The only error was the cosmological constant, and Einstein later called it “the biggest blunder of my life.”

Later in the 1920s, Edwin Hubble found strong evidence that the universe was expanding. That evidence was further confirmed in 1964 when radio astronomers accidentally discovered the cosmic microwave background. It was finally confirmed by space-based experiments in the twenty-first century.

The rate of expansion of the universe based on experiments was established and is known as the Hubble constant. On February 22, 2018, a new survey of the expansion rate was released. This scientific paper was based on the most precise measurements of the universe’s expansion rate using the Hubble Space Telescope. Scientists are surprised to discover that the expansion rate is faster than they thought. This new information may require some re-evaluation of the scientific understanding of the universe.

This is not the first time a re-evaluation was needed. Evidence of an expanding universe indicates that it had a beginning. If you trace the expansion backward through time, you can see that at one point the entire universe would have been compacted into a single point. The evidence of the expansion shows that the universe had a beginning when that expansion began. Since the expansion is accelerating, that means that the universe will never contract back and start over. Therefore, the universe is not eternal. It had a beginning, and it will have an end.

The bottom line is this: What did Moses know that Einstein and scientists before him did not know? That the universe had a beginning. “In the beginning, God created the heavens and the earth” (Genesis 1:1).
–Roland Earnst © 2018

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Design of Snow Is Awesome

Design of Snow Is Awesome
As I write this, we are sitting here in Michigan after having experienced a record snowfall for one day. As we shovel and snow-blow our driveways and around our mailboxes, we hear a great deal of abusive language from our neighbors. Still, there is a great deal of good in every snowflake because of the design of snow.

It is not just the aesthetic value of snowflakes that makes them good, although that certainly is a wonderful thing to see under a hand lens or microscope. The snow has a variety of other positive attributes designed into its structure.

A snowflake is made of water which is a polar molecule meaning that it has a positive and a negative end. The reason ice forms and water expands as it freezes is that the positive end of one molecule is attracted to the negative end of the next molecule. This structure also allows the snowflake to attract particles in the atmosphere that have a polar makeup. Salt, for example, has a sodium atom which has a plus charge, attracted to chlorine which has a negative charge. A salt molecule in the atmosphere will be attracted to a snowflake. Even molecules such as carbon compounds, which do not generally have a polarity, are attracted to the snowflakes. Snow cleans the air, and many of us enjoy being outside when it is snowing because of the freshness and purity it gives the air.

Snow stores water in places where water shortages are a problem. The western United States gets heavy snow in the mountains in winter. Water has a high heat of fusion. What that means is that it takes extra energy to melt ice–80 calories per gram of ice to be exact. For that reason, snow stays in the solid state for a long time after the temperature has risen above freezing. That allows snow to melt slowly sending a constant supply of water to dry areas at lower elevations.

The design of snow is also friendly to animals, especially small animals. When the snow is finally off the ground here in Michigan, there will be small tunnels visible in the ground where mice, voles, squirrels, and other small animals have built passageways under the snow. The low temperatures of the air in winter are not a problem for these animals because the snow is a good insulator. Predators cannot easily get to the animals because the snow covers them from aerial attacks.

Water is unique in many ways. Its freezing temperature and its boiling temperature are only 100 Celsius degrees apart. That allows water to exist on our planet as a solid, a liquid, and a gas. Each of those states of water allows some form of life to exist.

In Job 38:22 God questions Job, “Have you entered into the treasures of the snow? Or have you seen the treasures of ice which I have reserved against the time of trouble…” The Hebrew word translated “treasure” in this verse is atsar meaning “a thing laid up.” It is doubtful that Job knew anything about the water cycle or how he benefited from snow. But the God who designed snow and its role on Earth to benefit humans and all living things certainly knew all about the design of snow.
–John N. Clayton © 2018
Michigan also has “summer snow”

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Christian Ministers Who Advanced Science

Christian Ministers Who Advanced Science
In the past, a large number of famous Christian ministers and church leaders were also outstanding scientists or worked to advance science. The attempts of some writers to portray the historical relationship of science and faith as a continuous war are at odds with the evidence. There were leading Christian ministers who advanced science. Christianity Today in the December 2017 issue had an interesting article on some of them:

FRANCOIS-ETIENNE JALLABERT was a Huguenot minister and was the first chair of mathematics at the University of Geneva in 1704.
JONATHAN EDWARDS was a minister in Princeton, New Jersey, and in 1720 became the president of College of New Jersey which became Princeton University.
INCREASE MATHER was a preacher and in 1721 became the president of Harvard University.
COTTON MATHER was a religious leader in England and was a leading advocate for smallpox inoculation in the 1720s.
JOHN WESLEY was the founder of Methodism and was a leading promoter of the use of science and modern medicine in 1740-50.
JEAN JALLABERT was a preacher and a professor of physics in 1748.

The Christianity Today article details how these Christian ministers who advanced science promoted the use of science as a coworker with faith to benefit humanity. Many religious leaders of the past were highly educated in science and used scientific concepts to encourage people in their faith. True science and true faith are friends, not enemies.
–John N. Clayton © 2018

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Supermassive Black Holes and Creation

Supermassive Black Holes
One of the most interesting objects in the creation is the black hole. Now supermassive black holes give us something even more intriguing to think about.

At one time many scientists thought black holes were a joke. I had a physics professor back in my undergraduate days who taught us the basic principles behind the formation of a black hole. Then he proceeded to ridicule the idea as pure fantasy.

It certainly seemed like fantasy in the middle of the twentieth century. The basic idea was that there are two forces at work in stars. One was the electrical force that repels charged matter pushing it away from the stellar center. That force is proportional to the amount of charge present and the distance between the charges squared. It could be calculated by knowing a proportionality constant which governed electrical interactions and was determined experimentally. Its value is 9 x 10^9, so it is a very large force.

A second force is gravity. The mass of two particles multiplied together and divided by the distance between them squared calculates the gravitational attraction the particles have toward each other. Again there was a proportionality constant which could be measured in the laboratory, and it was 6.67 x 10^-11. That meant the electrical force is massively greater than the gravitational force by a factor of 10^20. That is why we have electric motors and not mass (or gravity) motors.

The question is what would happen if you had a star that was so massive that the gravitational force exceeded the electrical force? The answer was, of course, that the star would collapse. The amount of mass needed to do that would be astronomical, but it is possible. Einstein showed that huge masses could actually warp space. If a huge mass warped space, it might create a situation where even light could not escape. The result would be a black hole–a point in space where matter collapsed upon itself. That hole would continue to absorb anything that came near it, so it would just continue to grow in mass.

Astronomers have now observed black holes in many places in space. It might be more accurate to say that they have seen the holes produced by black holes. We now know that most if not all galaxies have black holes at their cores. We have seen black holes collide, and the resulting shock waves allowed scientists to detect gravity waves.

Now scientists are concerned about new finds of supermassive black holes which seem too large to have been formed by the process we just explained in an oversimplified way. Apparently, these new black holes were formed at the beginning of the creation perhaps by the collapse of huge clouds of gas and dust that were not a part of a galaxy. These strange supermassive black holes are around 1000 times bigger than normal black holes and may be remnants of the creation of the cosmos itself. This is a new area of study, but it should be supported by observations from a new telescope scheduled to go into orbit in 2019.

Black holes have much to teach us. If black holes are scattered universally throughout the cosmos, and if they are sweeping up all matter that gets anywhere near them, what would that mean? Obviously, it means that eventually the entire cosmos will be swallowed up by supermassive black holes! This confirms again that the cosmos has not existed forever and that there was a beginning to the creation.

In 2 Peter 3:10-13 we read that ultimately the cosmos will dissolve and the elements will “melt with fervent heat.” Matter/energy is not eternal. It had a beginning, and it will have an end. We don’t know if the Lord will use natural processes that have resulted from the creation itself, or whether He will use His power directly. Peter wrote in verse 11, “Seeing then that all these things shall be dissolved, what manner of persons ought you to be..?” Those words receive new support from the evidence of supermassive black holes in the cosmos around us.
–John N. Clayton © 2018
Reference: Scientific American, February 2018, page 26-29.

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Earth’s Atmospheric Shield

Earth's Atmospheric Shield Protects Against Meteoroids
In 2013 a 10,000-ton 60-foot (20 m) wide asteroid entered the Earth’s atmospheric shield and exploded over Chelyabinsk, Russia. The explosion occurred 18 miles (29 km) above the Earth emitting a shock wave equivalent to 10 Hiroshima bombs.

A team led by Dr. Jay Melosh of Purdue University has extensively studied what controls how much damage a rock from space can cause. Dr. Melosh’s research was funded by NASA’s Office of Planetary Defense, and some interesting facts have come from the research. According to the study, Hollywood disaster movies aren’t even close to being realistic. Dr. Melosh says “Realistic stuff doesn’t make a good story. Hollywood usually manages to get it wrong.”

Meteoroids are hunks of rock that come in all shapes and sizes and with different amounts of porousness. As a rock enters the atmosphere, air pressure builds up in front of it, and a vacuum develops behind it. For most porous rocks, the air will rush into the rock and blow off pieces, like an air hose blowing in a bucket of sand. The design of the Earth’s atmosphere is what causes the break-up of the meteoroids. It is only if they are too big to blow apart that they hit the Earth leaving a crater such as Meteor Crater in Arizona.

The article about Dr. Melosh’s work in the Herald Bulletin says that Earth’s atmospheric shield is better than we thought. Modern astronomy continues to find design features of the universe and the Earth that allow life to exist on this planet. This is another example of a design feature that makes it so that we don’t have to walk around looking up to dodge an incoming celestial missile.
–John N. Clayton © 2018

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A Glimpse of God’s Incredible Power

A Glimpse of God's Incredible Power
A very long time ago, in a galaxy far, far away, two neutron stars circled each other. They got closer and closer, speeding up as they did so. They reached a speed of 100 orbits every second, and then they collided. The collision was so violent that a gravitational wave was sent out, and a cloud of subatomic particles was released that produced large amounts of gold, platinum, and uranium. As that happened, a blast of high-energy gamma rays was released. Through this process, we received a glimpse of God’s incredible power as the energy reached Earth last August.

As astronomers were watching at 8:41 AM EDT on August 17, 2017, they observed the gravitational waves followed 1.7 seconds later by the gamma-ray burst. They gave the identification of SSS17a to the merger of the two neutron stars. Its location was in galaxy NGC 4993. Astronomers were amazed at the timing of the collision and the fact that they had their telescopes in the right place at the right time to observe and measure it. Astronomer Ryan Foley says, “We’ve been walking around for all of humanity being able to see the universe but not able to hear it. Now we get both. It’s even hard to predict where this field will go.”

The location of the collision was so far away that it happened some 130 million years ago, and it took the energy that long to reach the Earth. Science is now beginning to understand God’s creation of gravity. Also, scientists are learning how heavy elements like gold and platinum were produced.

For Christians, all of this shows a glimpse of God’s incredible power. It almost seems as though God knew that it was time for us to comprehend His making of the special things in the cosmos. He sent a glimpse of the process in 2017, so we could see and wonder at all He has done. It gives a whole new understanding to: “The heavens declare the glory of God, and the firmament shows his handiwork” (Psalms 19:1).
–John N. Clayton © 2018
Data from Astronomy, January 2018, page 10.