Letters

Letters 02-08-2016

Less Ageism, Please The January 4 issue of this publication proved to me that there are some sensible voices of reason in our community regarding all things “inter-generational.” I offer a word of thanks to Elizabeth Myers. I too have worked hard for what I’ve earned throughout my years in the various positions I’ve held. While I too cannot speak for each millennial, brash generalizations about a lack of work ethic don’t sit well with me...Joe Connolly, Traverse City

Now That’s an Escalation I just read the letter from Greg and his defense of the AR15. The letter started with great information but then out of nowhere his opinion went off the rails. “The government wants total gun control and then confiscation; then the elimination of all Constitutional rights.” Wait... what?! To quote the great Ron Burgundy, “Well, that escalated quickly!”

Healthy Eating and Exercise for Children Healthy foods and exercise are important for children of all ages. It is important for children because it empowers them to do their best at school and be able to do their homework and study...

Mascots and Harsh Native American Truths The letter from the Choctaw lady deserves an answer. I have had a gutful of the whining about the fate of the American Indian. The American Indians were the losers in an imperial expansion; as such, they have, overall, fared much better than a lot of such losers throughout history. Everything the lady complains about in the way of what was done by the nasty, evil Whites was being done by Indians to other Indians long before Europeans arrived...

Snyder Must Go I believe it’s time. It’s time for Governor Snyder to go. The FBI, U.S. Postal Inspection Service and the EPA Criminal Investigation Division are now investigating the Flint water crisis that poisoned thousands of people. Governor Snyder signed the legislation that established the Emergency Manager law. Since its inception it has proven to be a dismal failure...

Erosion of Public Trust Let’s look at how we’ve been experiencing global warming. Between 1979 and 2013, increases in temperature and wind speeds along with more rain-free days have combined to stretch fire seasons worldwide by 20 percent. In the U.S., the fire seasons are 78 days longer than in the 1970s...

Home · Articles · News · Features · Spy Drones
. . . .

Spy Drones

Harley Sachs - September 1st, 2005

When we first sent men into orbit they reported that the only man-made object visible from space was the Great Wall of China. Now astronauts report that at their altitude of about 100 miles they can plainly observe the environmental devastation caused by humans. Deforestation, the resulting erosion, and coastal pollution are visible from space.
Unfortunately, satellites to monitor these developments are expensive to launch and they orbit the earth about every 90 minutes. It would be better if observations could be made continuously at a lower altitude. Enter the UAV, the Unmanned Aerial Vehicles.
The goal is to develop a drone that will fly indefinitely over a chosen area, sending down pictures to observers on earth. The UAV will be the latest evolution of the unmanned drones first developed by the Israelis in their continuous struggle against Palestinian terrorism. The Israeli drones, controlled from the ground, sent back television signals to pinpoint the sites, for instance, where rockets were being launched.
The Israeli idea was further developed for the U.S. forces and it is estimated that as many as 800 such drones are now patrolling the skies of Afghanistan and Iraq. The drones are so small that they are virtually invisible to conventional radar. Follow the path, for instance, of a helium filled balloon some child has released. It rises higher and higher, but soon your eyes are no longer sharp enough to spot it. That’s the beauty of a drone that’s invisible from the ground and doesn’t risk the life of a pilot or the expense of a slow-flying plane if it’s shot down.
But the ideal UAV must fly indefinitely, circling the target area possibly for months without landing. To fly indefinitely means no refueling. To do that requires solar power.
After the first human-powered airplane crossed the English Channel, the feat was repeated by a solar-powered airplane. Of course, it could fly only as long as the sun provided energy to the panels on the wings.
Now for another acronym: HALE, standing for high-altitude long-endurance. A new HALE drone, built by former UK defense research lab QinetiQ, will push the boundaries for eternal planes a bit further. What it needs to keep flying at night is battery power. As Dr. Rogoyski, a key authority on the project, reports, the key to success of the HALE UAVs is the rapid advance in solar panels and lithium batteries.
If a lithium battery array with a 20% efficiency can be developed, those high-flying HALE drones will be able to stay up indefinitely, able to reach anywhere on the earth in less than 24 hours. Then those drones will be able to monitor crops, drought, and other agricultural factors. Drones are not just for fighting terrorists anymore.
I remember building model airplanes when I was a kid in the days of balsa wood, tissue paper, and propellers powered by a rubber band. My biggest model was able to take off and actually fly a few feet before running out of rubber power. Imagine what it would have been like to fly it on solar power alone.
Of course, that’s what Pegasus is supposed to do. It’s hard to imagine a plane with a wing span of 16m and a light weight of 27kg (that’s 53.3 feet and 52 pounds for the metrically challenged). One person could easily carry it. To achieve that the solar panels must be paper thin, the skeleton of ultra light carbon fibers, and the batteries and the transmission equipment incredibly small and lightweight.
The drones already developed have broken altitude records, flying as high as 94,000 feet, the edge of space. The HALE will fly in the stratosphere. Maybe they should have named it Icarus.

 
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