Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Saturday, January 13, 2018

If my life was an airline, this would be my route map

     I recently came across a neat website called Great Circle Mapper that makes it easy to display customized airline routes. I decided to enter all the flights I've ever taken (anyone surprised that I keep track of such things?) so I could visualize all the places I've been privileged to go.
     This globe shows the result. It's my version of the Bible maps of Paul's missionary journeys—only without any shipwrecks.
     The green routes span my newspaper career, mostly in Greenville. I wore a leisure suit on my first flight, at age 20, when my benevolent editor/great uncle Slim Hembree sent me to Omaha to cover the College World Series for the Anderson Independent. I have to thank Woodruff's Tony Rice for getting me to Phoenix, and Clemson's Rick Barnes for the junket to Puerto Rico.
     The yellow routes are flights I've made since joining Samaritan's Purse in 1999. Back in 2005, I departed on a 22,664-mile round-the-world trip to report on our tsunami relief work in Sri Lanka and Indonesia. We flew east via London and the Maldives to Sri Lanka, and after we continued over to Indonesia, the most direct way home was to keep flying east via Taipei and Los Angeles. (On a 40-minute backwards hop from Kuala Lumpur to Medan, we crossed a time zone and landed earlier than we took off.)
     The flight over the North Pole was from New York to Beijing to report on the 2008 earthquake in China. That yellow dot in the Sahara Desert is Timbuktu, where I had the privilege of helping to hand out Operation Christmas Child shoebox gifts. Most recently was a five-leg 17,330-mile round trip to Burundi to report on the ministry of one of our surgical teams.
     Here is the flat-earth view:

     Great Circle Mapper says I've flown 327,090 miles to 90 airports in 35 countries. If you figure 500 miles per hour, that's about two weeks of my life spent jammed into airplane seats.
     (On the other hand, I've probably driven close to a million miles. At 50mph, that would be over two years behind the wheels of the Mustangs, Spitfire, Bobcat, Hyundai, Lumina, Windstar, Saturn, Tribute, Accord, and CX-5.)
     These maps only show the places with airport codes like ATL, JFK, and 34NC (the helipad atop Carolinas Medical Center in Charlotte). Some of the places I've flown don't have codes, including several dirt strips in Africa and a float-plane landing at Dick Proennecke's cabin in Alaska.
SILLY JET! What else can you do with Great Circle Mapper? Well, the navigators of a Boeing 787 used an 18-hour test flight to draw a self-portrait. Click here!

En route to Darfur, Africa, I had a photo-op in the cockpit of a DC-3 built for World War II.

Tuesday, March 7, 2017

Riddler on the roof: When did N.C. stand tallest?

When Frenchman Andre Michaux stood here in 1794 and declared Grandfather Mountain "the highest mountain of all North America," he overlooked the obvious: The blue ridge on the distant horizon to the right is Mount Mitchell, which was actually the highest peak in the United States for 56 years.
     Jeopardy! champion Ken Jennings writes a blog called Maphead where he posed this question: Before Alaska became a state, where was America's highest mountain?
     It's really more of a riddle than a question. Because for most of our nation's history, no one was sure.

     The answer is California, which owned America's rooftop from the day it became the 31st state in 1850 until 1959 when Alaska became the 49th. Yet Jennings points out that well into the 20th century, atlases mistakenly listed Washington's Mount Ranier as the nation's highest mountain.
     In fact, California was 75 years old before surveyors verified that Mount Whitney was the highest point in the Lower 48. (Even then, there may have been a 10-foot error because the engineer was in such a hurry to get home to his fiancĂ©.) 
     Early topographic maps that used 100-foot contours show a virtual three-state tie among California's Whitney (14,495 feet above sea level in the 1925 survey), Colorado's Mount Elbert (14,431), and Washington's Rainier (14,408). All three have inched up in the latest satellite surveys: Whitney 14,505, Elbert 14,433, and Rainier 14,410.
     Before California, which state stood tallest? Texas had the highest peak in the nation* for five years after it became the 28th state in 1845, though I doubt that anyone knew it. (*I'm not counting the Louisiana Territory, which included Mount Elbert.)
     And before that? The whole country assumed New Hampshire's Mount Washington was highest until this news broke Nov. 3, 1835 in the Raleigh Register and North Carolina Gazette (back in the days before headlines were invented):

     The editor's note (above right) promoted a lengthy front-page article written by Dr. Elisha Mitchell, a professor of geology at the University of North Carolina. (If this link asks you to subscribe to newspapers.com, email me and I will send you a copy.)
     Dr. Mitchell surveyed several mountains in western North Carolina before concluding than an unnamed peak in the Black Mountains was the highest. He measured it at 6,476 feet above sea level, which underestimated Mount Mitchell's actual height of 6,684. Still, that surpassed Mount Washington, which then was believed to be 6,234 feet and is now listed at 6,288. 
     Dr. Mitchell's barometric measurements were generally shorter than the summit elevations we know today. He measured Grandfather Mountain at 5,556 feet (it is now known to be 5,946), the Roan at 6,039 (Roan High Knob is 6,285 and Roan High Bluff 6,267), and Table Rock at 3,421 (rather than 3,920).
Following Dr. Mitchell's footsteps
     He came closer on Yeates Knob (5,895 then, 5,920 now), which is important because Yeates is one of the viewpoints he used to triangulate Mount Mitchell and other peaks in the Black Mountains. (Yeates is now known unfortunately as Big Butt.)
     Dr. Mitchell was aware of other high mountains further west in North Carolina, including the Great Smoky Mountains (where Clingman's Dome rises to 6,643 feet, just 41 less than Mount Mitchell) and the Great Balsams (where Richland Balsam reaches 6,411 and the Blue Ridge Parkway crests at 6,047). His newspaper article said that the Unikee Mountains (the Cherokee name he used for the Smokies) "appear to the eye to be lower than the Black."
     Grandfather, on the other hand, appears to the eye to be even higher than it actually is, because of the way it towers almost a mile above the North Carolina Piedmont. When French botanist Andre Michaux climbed Grandfather on August 30, 1794, he broke into song and wrote exuberantly in his journal, "Reached the summit of the highest mountain of all North America, and, with my companion and guide, sang the Marseillaise and shouted, 'Long live America and the Republic of France! Long live liberty!'"
     From that hyperbole, we can assume the skies were relatively clear and Michaux had a view to the horizon. If so, he overlooked the obvious: Just 36 miles to the southwest, Mount Mitchell stood over 700 feet higher.
Lying here "in the hope of a blessed resurrection,"
Dr. Mitchell has a head start on Heaven.
     Through his 1835 trip and subsequent research, Dr. Mitchell was the first to prove conclusively that North Carolina had the highest ground in the 24 states that existed at the time. This had been the case since we became the 12th state back in 1789. 
     In 1857 (when there were 31 states, including California), Dr. Mitchell returned to the Black Mountains to verify his measurements and settle a dispute with one of his former students, Thomas Clingman, who insisted that his professor had not reached North Carolina's highest peak.
     On June 27, 1857, hiking after dark on the way down the west side of the Blacks, the 63-year-old professor slipped over a small waterfall and fell to his death. The following year, Dr. Mitchell's body was laid to rest on top of North Carolina's highest mountain, and in 1882 the peak that had been known as Black Dome was renamed in his memory as Mount Mitchell.

Friday, August 30, 2013

Where butterflies come from


My 2014 monarch perched on my ring finger for five hours before finally leaving
for Mexico. The black pouches along the lines on his hind wings indicate he's a guy.
    
     Each year about this time, a friend brings me a monarch chrysalis attached to a wooden stem. Unless I mess it up, I get to witness a biological miracle.
Adios to my 2012 monarch. An hour
from departure to Mexico, she is about
to become an instant expert in the
intricacies of flight and navigation.
 Leading entomologist Dr. Lincoln Brower uses that very term—"biological miracle"—to describe where butterflies come from. Whether you profess evolution or creation, either way it takes lot of faith to explain it.
 If this is evolution, I nominate the monarch butterfly as the most highly evolved species on the planet.
 If this is creation, God is giving us a glimpse of his majesty and his imagination—not to mention a profound illustration of the new birth that Jesus promises.
 Forgive me if I'm acting like a starstruck kid in the presence of royalty, but here are a few things a monarch butterfly can do better than you:

Fountain of Youth
 There are usually four generations of monarch butterflies each year. The first three live about 6-8 weeks from the time they hatch as caterpillars. Those born this time of the year live 6-8 months—four times longer than their parents and four times longer than their children. 
 If you’re looking for the fountain of youth, follow a September monarch—and be sure to drink your milkweed!

Parading to Mexico
 Like so many of my Boone neighbors, my monarch is a snowbird who will soon be heading south. He (or she—we’ll know by the dots on the hind wings) will return to the very same pine grove in Mexico where great-great-granddaddy spent last winter. My monarch has never met his parents or grandparents, who never had the urge to fly south anyway, but he inherently knows the way. Next spring, he might make it as far north as Texas before becoming a daddy and finally dying off. Succeeding generations will complete the migration. 
 One of the best places to watch the southbound migration is on the Blue Ridge Parkway where U.S. 276 crosses between Brevard and Waynesville, NC. The higher mountains funnel thousands of monarchs through Wagon Road Gap and Tunnel Gap in the last two weeks of September.
Open fields near the Blue Ridge are great for monarch-watching in mid-September.
I met these in 2017 in the meadow at Moses Cone Memorial Park near Blowing Rock, NC.


Defying Gravity
 Sam Snead once described a perfect golf shot landing so softly that it was “like a butterfly with sore feet.” In reality, gravity barely has a hold on these creatures. A typical monarch weighs about half a gram. A thousand monarchs weigh about one pound. Yet those born this September have the stamina to fly up to 3,000 miles on their migration to Mexico. That’s 3 million miles per pound.
 A pound-for-pound comparison may be absurd, but for a 125-pound runner to match a monarch butterfly, she’d have to jog 375 million miles, migrating to the outer limits of the solar system—and then give birth to babies whose grandchildren could find their way back on their own. 

Turning a Ford into a Learjet
 Awaiting the royal baby
 None of the aforementioned wonders compare to the metamorphosis happening right now inside the golden-beaded green chrysalis. A monarch caterpillar doesn’t just crawl inside a homespun shell and grow wings. It quickly dissolves into a green soup that Dr. Brower describes as a “rich fluid media” and then reconstitutes itself as an entirely different creature.
 I’ll let Dr. Brower explain: “Nothing like this happens in vertebrates—ever. It's a phenomenon of insects and it truly is a miraculous biological process of transformation
… Literally the entire internal contents of the caterpillar—the muscles, the entire digestive system, even the heart, even the nervous system—is totally rebuilt. It's like you took a Ford into the shop and left it there for a week and it came out as a Cadillac.”
 I thought he was going to say it came out as a Learjet—which happens to have about the same flight range as a monarch butterfly. 
 Dr. Brower also notes how the monarch “changes its ecological niche entirely when it transforms from a caterpillar to an adult butterfly. They are two ecologically different organisms, as distinct as a field mouse and a hummingbird."
 All hail the king of the butterflies!
Birthday morning! Unfortunately, missed the blessed event, so this is the last photo I have of my 2013 monarch.



New York Times map tracking migrations of six individual monarchs.