Your Copper Pipes
November 8, 2011
Each of us is part metal. Our bodies contain iron, copper, zinc, magnesium, manganese, vanadium, molybdenum, selenium, and even nickel like the coins in our pockets or purses. Unlike the other common elements of life (carbon, oxygen, hydrogen, calcium, nitrogen, phosphorus), our metals are not synthesized and recycled, but must be imported and handled with care. Copper is a good example of a biological metal that performs multiple useful functions – that is, unless something goes wrong with the machinery handling it.
Preventing Aging Through Darwin-Free Science
November 3, 2011
Will new discoveries in biochemistry lead to longer lives? There are hopeful signs that aging can be delayed, if not prevented. Whether or not that happens in our lifetimes (causing new worries for Social Security), scientists are learning amazing things about how cells work that should give us more reason for Thanksgiving.
Vitamin C Loss Is Not Evolution’s Gain
November 2, 2011
Evolution predicts gain of function; genetic entropy predicts loss of function. A gene that helps synthesize Vitamin C provides a test between the two views.
Animal Magnetism and Other Wonders
October 30, 2011
What is it that so attracts us to animals? Is it animal magnetism? Some animals do have magnetic senses that can guide them across oceans. The more we learn about animals, the more we should admire their high-tech equipment. Here are some recent examples of amazing animals, some of them suitable for Halloween decorations.
Caveman’s Best Friend, Evolution’s Newest Upset
October 29, 2011
The evolutionary story of the dog-human relationship has had to be drastically revised in light of recent findings. The old story was that wolves tamed themselves into doggish behavior some 15,000 years ago in Asia by frequenting human garbage dumps. Evidence from caves, fossil prints, and the dog genome, though, has required a near complete overhaul of how our animal companions and their relationships to humans evolved, calling into question whether evolution was involved at all.
Mighty Mitochondria Conduct Energy Exquisitely
October 7, 2011
None of us could live without mitochondria. These are the power centers ubiquitous in eukaryotic cells. They contain molecular machines in factories whose jobs are to generate and conduct electrical currents. The currents run turbines that packetize the energy in molecules of ATP, which are then used by most processes in the cell. New discoveries continue to fascinate scientists with how mitochondria work. Some scientists use their energy to find ways Darwinian evolution could build the machinery of life.
Enjoy Your Body Gifts
September 29, 2011
When you eat right and exercise to do your body good, you may have little idea how much your body is giving back all the time. From recent scientific discoveries, here’s a look at a few mechanisms under our skin that not only keep us alive, but provide us with a shopping mall of good things.
Evolution Fits Any Data
September 23, 2011
At first blush, it might seem a wonderful thing when many different kinds of evidence can be explained by one simple, elegant theory. Actually, though, too much confirmation can be a theory’s downfall. When a theory explains too much – even opposite things – it really explains nothing. For instance, everything in the universe can be explained by the phrase, “Stuff happens.” Such a theory is useless, even if true. That’s why any theory that explains too much should be looked at askance. Here are some recent observations offered in support of the theory of evolution:
Stretching Credibility in Evolutionary Stories
September 20, 2011
Improbable events happening numerous times; selective extinctions; voodoo phylogenetics – at what point do evolutionary explanations exceed the threshold of credibility a trusting public grants to the gurus of the culture, scientists?
Human Genome Individuality Adds New Questions
September 13, 2011
Mission accomplished: “The Human Genome Project” was in the bag by 2003. Now we understand how humans are genetically wired, right? Not so fast. Another human genome was just published, raising a whole new set of questions. The big issue is that we all have two genomes in one – one from each parent. Biologists knew this, of course, but for the first time, those two genomes were untangled from one another, and a lot of differences were found: two million, in fact. How do our two separate genomes behave toward each other? And if genomes differ this much, what does a concept like “the human genome” really mean?
Are Biological Clocks Like Paley’s Watch?
September 9, 2011
What is a clock made of? We think of springs, gears and moving parts made out of metal. But a clock could, in theory, be designed with almost any material. There are water clocks, sundials, and electromagnetic oscillators that all function to tell time. What difference does it make if the parts are made of liquids, laser beams, or plastic? What if a clock was made of biological material—would it be any less a device for keeping time? Would it surprise you that such clocks exist in your body and in every living thing?
Pascal to Your Health
August 30, 2011
Blaise Pascal joins Louis Pasteur among the ranks of creation scientists who have improved the safety and nutrition of our food. We all know about pasteurization, the process of eliminating germs by gentle heating, but have you heard of pascalization? It’s “a century-old food preservation technology, finding a new life amid 21st century concerns about food safety and nutrition,” reported Science Daily. The process “more than doubles the levels of certain healthful natural antioxidants in fruit.” Pascalization will give new meaning to the term “fresh squeezed”.
Would Wood Evolve?
August 16, 2011
The woods. We call them by their primary substance: wood. But would wood evolve from plants lacking woody stems? Was there some evolutionary pressure to force plants to grow tall to reach the sun, so that lucky mutations found a way to produce lignin and the other building blocks of wood? What other mutations did the blind evolutionary algorithm have to find to organize the components into trunks for trees? Two discoveries, a fossil and a mechanism, offer evolutionists a way to enhance their woody story.
Cell Chaperones Keep Proteins Properly Folded
August 2, 2011
Imagine linking together a chain of 300 plastic shapes, some with magnets at various places. Then let it go and see if you could get it to fold spontaneously into a teapot. This is the challenge that cells face every minute: folding long chains of amino acids (polypeptides) into molecular machines and structures for the cell’s numerous tasks required for life. DNA in the nucleus codes for these polypeptides. They are assembled in ribosomes in single-file order. How do they end up in complex folded shapes? Some polypeptides will spontaneously collapse into their native folds, like the magnetic chain in our analogy. Others, however, need help. Fortunately, the cell provides an army of assistants, called chaperones, to monitor, coax, and repair unfolded proteins, to achieve “proteostasis” – a stable, working set of proteins. That army is so well-organized and complex, scientists continue to try to figure out how it performs so well in the field.
Clue or Clueless on Plant Evolution
August 1, 2011
An article on The Scientist promised to provide “clues to plant evolution,” but the data seemed like clues to something else – namely, design. The article was about how plant proteins interact with one another – the “interactome” (another word to add to genome and proteome). Did the work actually fulfill evolutionary predictions? Even if they claim it did, did it really?