Showing posts with label Larry Verstraete. Show all posts
Showing posts with label Larry Verstraete. Show all posts

2 Mar 2018

The Science of Walking and The Art of Problem-Solving

By Larry Verstraete

My wife, Jo, and I are ardent hikers. She more than me, actually. Jo outpaces me on every trail, faithfully charts her steps with her Garmin, and competes with others online. I’m a bit slower, usually a quarter, perhaps a half kilometre behind. I track my steps, too, as well as heart rate and total distance, but I’m more interested in how far I’ve gone.

Recent studies tout the benefits of walking. Moderate walking reduces the odds of heart disease, stroke, insulin dependence and diabetes. It improves mood and sleep, reduces stress and anxiety, boosts energy and increases focus. Walking also changes the brain in remarkable ways.

A study conducted at the University of British Columbia found that regular brisk walking increases the size of the hippocampus, the brain region that monitors verbal memory and learning. Stanford researchers, meanwhile, discovered that creativity jumped 60% when subjects walked. Other studies showed that walking for 40 minutes three times a week Increased performance on cognitive tests and reduced declines in brain function as we age. It didn’t matter what kind of walking – whether on a mountain trail or on a treadmill – the benefits were the same.

Many problem solvers incorporate walking into their regimen. Aside from the physical benefits, walking is a way to wipe the slate clean, kick-start creativity, and channel fresh ideas. William Blake, William Wordsworth, and Henry Thoreau were among the many creative types who embraced walking.

“Me thinks that the moment my legs begin to move,” Thoreau wrote, “my thoughts begin to flow.”

When I walk, my mind drifts which might explain why I sometimes lose sight of Jo and have taken a wrong turn more than once. While that’s not a good thing, the drifting part can be – at least to a writer like me. While plodding a respectful distance behind Jo, I’ve solved problems and come up with some of my best ideas.

Turns out, I am growing my brain too.  Who knew?

Photos by Larry Verstraete. Brain image from Pixabay.

5 Jan 2018

Crayola’s New Blue and Other Hidden Opportunities

By Larry Verstraete

Months ago, Crayola, the crayon giant announced the removal of Dandelion from its palette of yellows and oranges. In March, the company issued a news release saying that Dandelion’s replacement would be in the blue family. Not long after, it added another tidbit of information. The replacement would be a newly invented, never seen before, hue of blue with a backstory as unique as its name, “YInMn Blue”.

In 2009, Mas Subramanian, an Oregon State University (OSU) chemist, discovered the colour with his grad student, Andrew Smith. The two were heating batches of manganese to 1200 °C (~2000 °F), hoping to produce a high-efficiency electronic material. After one attempt, Smith pulled a striking, brilliant-blue compound out of the furnace. Subramanian knew right off it was a research breakthrough. Unwittingly, they had created a shade of blue unlike any other from a combination of yttrium, indium, manganese, and oxygen.

Recognizing opportunity, Subramanian and his team shifted gears. They expanded their research. To date, they have created a range of new pigments, everything from bright oranges to vibrant hues of purple, turquoise, and green.

Discoveries of this sort are not uncommon in science. X-rays, penicillin, and Kevlar are a few items that owe their existence to usual circumstances where scientists were looking for one thing and happily found something else. The nicotine patch is another.

In 1986, as Frank Etscorn, a behavioural psychologist, walked across the floor of his basement laboratory in the New Mexico Institute of Mining and Technology carrying an open vial, he stumbled. He had been studying sugar dependency in rats and the vial contained a nausea-inducing substance found in tobacco that he thought might reduce the rats’ cravings for sweets. When he stumbled, the brown liquid sloshed on to his arm. “I wiped it off and didn’t pay attention,” he told a reporter for People Magazine later. “But after about 15 minutes I felt nauseated.”

The experience sidetracked Etscorn, steering him into a new area of research. “Almost immediately, I realized this could be a way for people to stop smoking.”

It took years to produce a workable nicotine patch, but the accident was the start of the process. Just as in Subramanian’s case, Etscorn saw something others might have missed.

What does it take to recognize hidden opportunities when they arise? Brain research provides some clues. The corpus callosum, a thick band of more than 200 million nerve fibres, connects the left and right hemisphere. Think of it as a busy freeway where impulses fire back and forth, facilitating communication between the two sides of the brain.

In brain studies, neuroscientists discovered that the corpus callosum of creative individuals was thicker than normal. In such brains, there appears to be more communication between the two hemispheres and greater potential of connecting seeming disconnected ideas.

Not every brain hardwired with a thick callosum connects the dots and capitalizes on unexpected circumstances, however. And it doesn’t mean that a brain with a thin callosum cannot be a member of the discovery club either. There’s more at play in taking advantage of serendipitous events than simple brain mechanics.

Over a century ago, Louis Pasteur made a major discovery after his lab assistants neglected a batch of petri dishes. Wondering how this would affect his results, Pasteur opted to carry on the experiment.  His decision led to a breakthrough in the development of vaccines.

Luck played a role in the discovery. The lab assistants messed up, providing Pasteur with opportunity. But Pasteur recognized that more than luck was involved, too. Knowledge and experience combined with curiosity seem to be another part of the formula. Or, to quote Pasteur’s famous line, ‘Chance favours the prepared mind’.

There you go, crayon lovers. Colour on with Crayola’s new blue knowing that you are holding a bit of chance between your fingers.

Images from Pixabay

26 May 2017

Three Men in a Canoe – A Fossil Legacy

By Larry Verstraete

Over the phone, Don Bell is matter-of-fact and modest, as if just about anyone could have accomplished what he, Henry Isaak, and David Lumgair did. But others didn't - at least not initially, nor to the same degree - and you don't have to look far to find proof of their legacy. It's a floor below the indoor hockey rink in Morden, Manitoba, in a sprawling space called the Canadian Fossil Discovery Centre (CFDC).

During my research for ‘Dinosaurs’ of the Deep: Discover Prehistoric Marine Life (Turnstone Press), Don Bell's name came up often. "He knows more than almost anyone," someone at CFDC told me. "You should call him."

So I did. "Can you tell me how this all started?" I asked.

"We were on a canoe trip," Don said.
(L to R) David Lumgair, Henry Isaak, Don Bell taken on the day they heard about the fossil find
(Photo courtesy of Don Bell)
In quick steps, Don covered the story of a 1972 canoe trip involving a group of paddlers. Don, Henry and Dave were in one canoe, keeping leisurely pace with the others. At a stop for lunch, discussion ensued about a recent discovery of dinosaur bones in the Morden area.

"Hank and I were interested," Don said.

Bitten by curiosity, Don and Henry, both teachers, struck out at 6 a.m. on a later weekend to search for the fossil. A mile west of Morden's Stanley Park, they turned south and drove another 300 metres. Lying exposed in a field, they discovered a large fossil skull. Immediately, they realized that it was not a dinosaur, but a long-extinct – and very large – marine reptile.

"We knew it was important," Don added.

Ill-equipped to bring the skull home, Don and Henry drove back to town to regroup. By the time they returned, two young fellows were there, hammering the fossil to pieces.
The Manitoba Escarpment near Morden, Manitoba.

The Morden region lies at the edge of the Manitoba Escarpment. Eighty million years ago, at the time of the dinosaurs, the Western Interior Seaway sliced across North American dividing it in half. The escarpment is a by-product of Manitoba’s watery past and a rich source of marine fossils from that period.

At the time, the Pembina Mountain Clays Company had been mining the area for bentonite, a type of volcanic clay used in detergents and other products. Fossils turned up frequently, often crunched to bits by heavy equipment.

Realizing the scale of destruction, Don and Henry embarked on a mission to save as many as possible. The two got to know the miners and struck up a deal. When fossils surfaced, miners placed a call to the pair. In the evening, after the miners shut down for the day, Don and Henry salvaged what they could before operations resumed in the morning. Sometimes they worked through the night, excavating and jacketing fossils by the glow of headlights. They carted their prizes home and stored them in Henry's garage and Don's basement.

Knowing the demands of teaching, I couldn't imagine a life of all-nighters. "What kept you going?" I asked Don.

"To me it was exciting, discovering something that hadn't been discovered before," he said.
A plesiosaur on display,
one of many collected  by Don and Henry.
What started as a small-scale operation mushroomed. Interest spread. Volunteers joined the effort. Henry tapped into government grants and hired university students to help. The pair consulted paleontologists and made weekend field trips to Kansas City, Drumheller, and the University of Calgary, places with Late Cretaceous fossils and people with the necessary know-how.

Early on, David Lumgair – the third man in the canoe – got involved, too. He lived on a farm near Thornhill, a few kilometres from Morden. Fossils often surfaced on his land, and Dave had an open-door policy when it came to the growing brood of fossil hunters. He welcomed them and let them set up shop on his property.

In just two years, the ambitious team unearthed 30 mosasaurs, 20 plesiosaurs, and hundreds of other fossils from the region around Morden. In 1974, David’s farm yielded a spectacular prize – an immense mosasaur. Nicknamed Bruce, it took several seasons to unearth and jacket the entire creature.
Bruce, the world's largest mosasaur, on exhibit at the Canadian Fossil Discovery Centre.

Eventually, the collection of fossils outgrew Don’s basement and Henry’s garage. It was moved to the Morden and District Museum, and then in 1976 to its present quarters in the lower level of Morden's Community Centre.

Today, the Canadian Fossil Discovery Centre is a world-class institution. It houses Canada's largest collection of Late Cretaceous marine vertebrate fossils. The undisputed star of the Centre is Bruce. The sprawling 13-metre-long mosasaur is the world’s largest exhibited mosasaur and a Guinness record-holder.
Two university students with Victoria Markstrom (R), Field Collection Manager
for the Canadian Fossil Discovery Centre at a dig site along the escarpment.
The Morden area continues to yield fossil treasures, and new finds are constantly being added to CFDC’s holdings. The place is a buzzing hive of research and educational programs, and a fitting reminder of what three people hooked by passion and persistence can achieve.

Links:
Canadian Fossil Discovery Centre   http://discoverfossils.com/
Turnstone Press  http://turnstonepress.com/
Larry Verstraete  https://www.larryverstraete.com/

Unless otherwise noted, all photos by Larry Verstraete.