Bats!

Last night was Perseids night--we had our lawn chairs out, the full moon's light blocked by the garage at our backs. The mosquitoes, our state bird, were scarce enough that we had not slathered on whatever state-of-the-art organic compounds we use to ward off 6-legged critters these days.





Joe Westerberg, Joshua Tree National Park, California, Aug. 11, 2007

We saw a bat, a welcome sight. Then two. Now a third.

We held still, lying on our chairs, watching the bats chase bugs and each other, a spectacular aerial show against the deep gray-violet of the late dusk sky. And we realized that, really, the mosquitoes were remarkably scant.

A bat swooped up from the ground by our feet, no doubt, munching away. We watched the acrobats flip from their invisible trapezes a few more moments, then one swooped inches from our heads.

Now we know that bats tangling in your hair is an old wives' tale, but the few mosquitoes buzzing about our heads was tempting enough to the bats to show off their aerial skill a tad too close, and as much as we appreciated their predation, we scurried back inside.

Though we missed the main event, the Perseids changed our world in subtle ways:

  • A few of my red blood cells gulped by a mosquito (or two) ended up in the belly of a bat, now broken down into tiny pieces. Some of it will become part of that bat, some released as carbon dioxide in the bat's breath, possibly captured by the Brussels sprouts nearby, which I will eat after November's first frost.

Communion.







The meteor photo was taken by Joe Westerberg, lifted from Spaceweather.com, used with permission.

READ MORE - Bats!

Natural world

If you know a bit
About the universe

It's because you've taken it in
Like that,

Looked as hard
As you look into yourself,

Into the rat hole,
Through the vetch and dock
That mantled it.

Because you've laid your cheek
Against the rush clump

And known soft stone to break
On the quarry floor.
Seamus Heaney, from "A Herbal," Human Chain



***

I got whomped pretty good by a virus last week, you may have, too--it's wandering around.

Viral illness fascinates me for a variety of reasons. Pieces of viral nucleic acids take over your cells for no particular reason except to make more copies of the same nucleic acids. We respond by using eons of evolutionary memory built into our own DNA, waking up specific antibodies to tackle a problem seen before by our long gone ancestors.

This particular bout with a virus had the added bonus of hallucinations--not the feathery, febrile kind, where various blobs of color bounce through your field of vision as your teeth chatter. No, these were different--they were real.

Solid, opaque objects meticulously placed in a couple of spots around the room grabbed my attention as I lay in bed. I woke up Leslie to confirm that they were not, in fact, real, though they were as real as the cup of coffee sitting next to me now. Rock solid real. (We've been together a long time--she answered directly, then went back to sleep, just as directly.)

The only reason I even questioned their reality was because there was no particular reason why a couple of large cubes would be stacked on the corner of the bed.

In the morning,I asked Leslie if I had, indeed,asked her about the boxes sitting in the room. I had.

Most sensible people would have seen a doctor, but since we conveniently have one under our roof, and since I was otherwise OK except for the usual virally fever, sore throat, and muscle aches, I opted for watchful waiting, and except for a diminishing malaise, I have, as expected, recovered.
***

Most high school science classes start out the same way--before plunging into a specific -ology, we toy with the concept of science. We speak of learning more about the natural world.

It occurs to me, a few years late, that few people (besides scientists) know what "natural world" means, and the scientists know that what we know is tenuous, at best.

That's not how my lambs hear it--the "natural world" is as obvious as the noses planted on their faces. Really, just how daft is this teacher?

What makes something real in the natural world? What is the essence of stuff?
***

Biology is the study of how stuff puts itself together over and over again, and how energy is glommed to make this possible. A century ago, biology mostly taxonomy, a great way to teach children how to look for nuances as they classified and dissected hundreds of organisms into various categories.

This year I will spend exactly one day on taxonomy--which is one day too many the way we approach it now.

My students have not yet had chemistry, or physics, or geology--yet we expect them to learn molecular biology. This is, of course, silly, so I spend most of the year exposing children to fancy-sounding biology words but sneaking in basic science epistemology every chance I get.

What do we know, and how do we know we know it?
***


Until kids grasp the circularity of our most basic assumptions about matter and energy--sophomores are not quite ready for quantum mechanics--most see science as solid as the odd solid blocks someone placed on the edge of our bed last week.

They are studying hallucinations, and see them as real, because they have been told, over and over again, that they are real.

They believe in atoms atoms (or rather what teachers present as atoms) are real, without grasping their vast emptiness.
The atoms taught in elementary school  do not exist. If a nucleus is the size of a dime, the electrons would fling as far as half a football field, and even that's just an average. What's in-between? Nothing. Nothingness is a huge part of everything.

They believe in the Big Bang, imagining an explosion in empty space, truly magical thinking and a misconception of an conceptually inconceivable model, and we feed their misconceptions.
The Big Bang, as understood by most, ranks right up there with Santa Claus. The whole point is that there was no space--all energy/mass was a point, so distance, as such, did not exist. A picture of the Big Bang as seen from the outside is not science, it's religion.

I get too strident, not because I know something students don't, but because we keep assuring them that the nonsense they know is "science."
***

Schools muddle things up pretending that a young child who parrots science vocabulary knows more than the child babbling on about the Easter bunny or a schizophrenic babbling about critters implanted in his brain.

We praise hallucinatory thought, and we suffer the consequences.

My goal is for kids to know less by June than they knew in September, a whole lot less. Good science can be as tenuous as the wisp of a shrew's breath.

Until they know this, and it's easier to grasp when entropy takes its toll over the years, as knowledge of your inevitable path creeps into cerebral shadows, I fear I am wasting their time.

Until they know this, maybe pushing them outside, a copy of Seamus Heany's Human Chain in one hand, a cheap plastic magnifying glass in the other, is enough science for a period, for a lifetime.

Between heather and marigold,
Between sphagnum and buttercup,
Between dandelion and broom,
Between forget-me-not and honeysuckle,

As between clear blue and cloud,

Between haystack and sunset sky,
Between oak tree and slated roof,

I had my existence. I was there.

Me in place and the place in me.
Seamus Heaney, from "A Herbal," Human Chain


Which is all we can ask for, all we can know.
The rest is hallucinatory.






The pieces of poem are from Seamus Heaney, obviously, but are meant to be read as part of a larger piece, not included here because I'm already pushing copyright law. Buy the book. Read it. Then a few weeks later, read it again. Months later, again. He gets it, this whole 'thing' thing. Eases some of the fear, no?
READ MORE - Natural world

Letting go

I'm letting go this year. I'm going to trust the collection of young humans sitting in my class, brains honed by countless generations before them, each and every child with a lineage going back as far as the first protobionts that globbed together in the seas here billions of years ago.

I'm letting go this year. I'm going to remind myself every morning, right after the Pledge of Allegiance, that I am mortal, that my students are mortal, and that the "liberty and justice for all" means just that. Neither is cheap. Nor are our children.

I'm letting go this year. I'm singing aloud in class, because I can, and because it helps children remember, It helps them remember facts, true, but more important, singing itself helps us remember who we are. I may drop a couple on a used guitar. I don't play well, but I do play. I don't sing well, either, but I do sing. As the warm July sun sets, I hear the squeaks and squawks and chimmering and chammering of cicadas and cardinals and squirrels and bees and crickets and grackles and dogs. Even the fish around here make noise, croakers and sea robins grunting in protest when dragged out of the water.


I'm letting go this year. I'm going to overtly share my ridiculous love and awe for this marvelous universe, one that belongs to any critter with ribosomes and some nucleic acids. I'm sharing our emerging stories of the natural world along with the joy and fear these stories elicit. Squid flashing light signals to each other deep in the ocean, orgiastic balls of earthworms reveling , bacteria sensing each other before working communally to a common goal--stories about other lives that help us grasp ours.

I have no idea what worlds lie outside what we can sense and rationally infer. I do know that what exists in our natural world exceeds the imaginations of all of us.  If a child's curiosity gets dampened in science class, you cannot blame the world.








Leslie's photos.
READ MORE - Letting go