Archive for April, 2010

The Tragedy of the Bat

Monday, April 5th, 2010

By David L. Brown

01_fungusbatBats have always gotten a bum rap. These furry little flying creatures have been associated with vampires, witches and ghouls for generations, and they’re the first to be blamed for rabies and other diseases. In fact, nearly all bats are harmless and do much good for humanity. The only exception is the vampire bat of Central and South America, a blood sucking species. Most bats are either insectivores or fruit-eaters, and the North American varieties are generally good neighbors, not fearsome monstrosities as many people imagine.

Now, bats are in trouble. So-called white nose syndrome is caused by a fungus that grows a white coating on the muzzles of bats and results in their death. It’s spreading from the Northeastern U.S., where it was first noticed near Albany, NY, in 2006. So far, the little brown bat has been the major victim of the widening plague, but other species also seem to be at risk. The photo at left shows an infected bat with the fungus in evidence not only on its muzzle but on its wings and ears as well.

According to an article in New Scientist magazine, the suspect in the disease is the fungus itself, Geomyces destructans, although scientists speculate that it may be a secondary opportunity infection riding piggy-back on some other disease pathogen.

Unlike many if not most people, I have a warm place in my heart for bats, which I have often observed in their busy evening task of swooping up millions of mosquitoes. Back in my youth I belonged to the University of Missouri campus spelunking club. (That’s a fancy name for cave exploring.) We used to crawl, wade, raft, or rappel into holes in the ground as a form of weekend sport, but also for science because we searched out and mapped caves in the limestone-rich region of central Missouri.

I have two personal anecdotes to report relative to bats. First is a memory of a late afternoon when I emerged after a lone venture into a  cave that was host to a large colony of bats. As I walked toward the oval opening, facing west across a small valley, sunset was fading and twilight was descending. The bats were beginning to stir, and soon I was standing in the mouth of the cave in the midst of a stream of bats leaving for the evening. Hundreds of them were swooping and dodging around me, a virtual river of bats, as I stood with my hands stretched overhead.

Yes, I realize that for some of you this would have been a nightmare scenario, but to me it was a marvelous experience of nature. The bats, of course, have built-in sonar navigation systems that would make a submariner jealous. They would never hit someone, any more than they collide with each other or run into the sides of their cave. The sonar is so good they can zero in on insects as tiny as gnats and mosquitoes, which are their foods of choice.

The second anecdote is a sad one. We once owned a house in Prescott, Arizona, in the high Ponderosa pine country. It featured a deck with a western view, and my wife and I enjoyed sitting there at dusk watching the bats swoop and dodge, catching the mosquitoes that would otherwise be feasting on us. The little colony of bats had found a home beneath the roof eaves of our house, and we were glad to have them there.

After a few years we moved away, but kept the house and rented it out. It wasn’t long before I got a call from the rental agent. The new tenants had complained that the house was “infested with bats,” and were insisting that an exterminator be hired to eliminate them. “Infested!” I cried. “Those are our bats!” I asked him to explain to the tenants, but nevertheless the ignorant fools insisted that the bats be killed. To this day I hope they were eaten alive by mosquitoes every time they tried to enjoy the deck. Disgusted, when the tenant’s lease ran out we insisted that they leave (they didn’t want to, but life is sometimes cruel) and sold the house. I still have bittersweet memories of those bats and their evening acrobatics.

Anyway, there’s my little collection of bat stories. They are often maligned, feared, and murdered for no good reason. In reality, they are an important part of the natural cycle of nature, helping to control those flying insects that, ironically, do suck our blood.

Oh How Far We Have Come!

Saturday, April 3rd, 2010

By David L. Brown

In 1965 Gordon E. Moore, a co-founder of Intel Corp., wrote a paper in which he predicted that computing power would continue to increase exponentially, that is, doubling again and again. Moore noted that since the invention of transistors, about seven years before, the number of components (switches) that could be put on a single integrated circuit chip had doubled approximately every year. He claimed that that trend would continue “for at least ten years.”

Well, what has become known as “Moore’s Law” turned out to be an understatement. Since his paper appeared, computing power has continued to double, not every year but every 18 to 24 months, regular as clockwork. And while contrarians have often claimed the end is in sight, technology has continued to roll forward. Present estimates are that Moore’s Law will continue  to hold true until at least 2015, and the promise of new methods coming over the horizon may extend the exponential expansion even further. And, oh yes, should quantum computing become a developed technology, it could go even faster and further to almost unimaginable levels of storage and computing power. In a few years, you may be able to hold the entire contents of the Library of Congress in one hand while scratching your head with the other.

Words are great things, and it is my personal belief that despite the old saying they are more powerful than pictures. Sometimes, though…well, here’s an example.

storage-1980-2010crop1What you see here are two forms of computer storage, one from 30 years ago and one from today. On the left is an eight-unit IBM 3380 Disk System from 1980. Each of the eight units can hold 2.5 GB of data, so the total capacity of the array is 20 GB. The estimated cost of this system ranged to more than $1 million. It weighs about 4400 pounds. This was an advanced example of the cutting-edge technology that had put a man on the Moon.

On the right, by way of comparison, we see three 32 GB micro SD flash memory cards from today. Each card has more than half again more capacity than the complete IBM array from 30 years ago, and together the three cards could store nearly five times as much as the eight units of the old hard disk unit. The weight of a single flash memory chip is about half a gram, or 1/70th of an ounce. You can buy a 32 GB flash card for less than a hundred bucks, and Apple’s latest iPod and iPhone products, not to mention the new iPad, can be ordered with that much memory. Prices are sure to come down fast as new, even larger capacity products hit the market.

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Yours Truly Named ‘Citizen Journalist of Year’

Thursday, April 1st, 2010

By David L. Brown

preview-20561The champagne is flowing here today at Star Phoenix Base. For my work on this weblog, yours truly has been named “Citizen Journalist of the Year” for the Rocky Mountain region of the Society of Professional Journalists (SPJ). Hoo hoo! (Cue fireworks and marching band.) Pardon me while I gloat.

It’s almost impossible to believe but Star Phoenix Base has been in existence for four years this month, reporting and commenting on the dangers faced by the Earth. I’ve written on a broad range of subjects, including the environment, global warming, politics, economics, and, well, you name it. The piece that won the award from SPJ was a words-and-pictures report on a campaign appearance by John and Cindy McCain in Albuquerque during the last presidential election.

The prize came as a result of my entry in the “Top of the Rockies” competition sponsored by SPJ’s Region 9, which includes New Mexico, Colorado, Utah and Wyoming. A long-time member, I am active in SPJ, presently serving as VP-Communications for the Rio Grande Chapter which includes all of New Mexico and West Texas.

Well, gotta go. My adoring crowd of supporters is demanding more champagne. Cheers!