I have the privilege (really!) to patrol Monday morning parking lot duty from 7:15 until 7:50. On most Monday mornings there are no more than 2 or 3 cars in the parking lot when I arrive. That makes for some quiet moments to consider the day, pray about concerns, and look around. Quiet allows you to observe better. One morning I saw various seeds under the trees: Bald Cypress cones, acorns, and Sweet Gum balls. Another morning I saw oak leaves of various sizes and broadness on the ground. Looking up into the tree I could see that smaller ones generally came from the top of the tree and larger ones from the bottom. These larger ones are called shade leaves. They are competing for the sparse sunlight in the shade cast by the rest of the tree. Yet a third morning I spied leaves popping up a few at a time in the direction from one bush to another. I kept watching and every 5 to 10 seconds the leaves would pop up an inch or so. After every few minutes the movement of the leaves would retrace the path back toward the first bush. I concluded that I was seeing a mouse or other vermin forging a tunnel just under the leaves and mulch on this frosty morning.
Speaking of frost, the very next week the morning was even colder, around 27 degrees (-2.8 degrees Celsius). As I approached my usual vantage point for watching cars, students, and nature, I saw that the golden brown Bald Cypress needles had fallen to the ground in the last week and this morning were fringed in frost. I went to investigate and caught a hold of an early arriving former student, requesting that he snap a picture and e-mail it to me (gonna have to get one of them new fangled smart phones one of these days).

The most Exquisite Lace
I retreated back to my self-appointed post. Still there were but few cars in the lot and none nor no one stirring. I glanced over toward the frosted needles once or twice. Then between two bushes I spied a curious sight about which I was at first incredulous. In fact, a few minutes later a student came to pass my way and I requested the use of her young eyes to see if she would see what I think I was yet seeing. She confirmed that there were indeed the appearance of heat waves between the bushes. Imagine, heat waves on a frosty morning! She went on and I was left standing to contemplate how this could be. Moments later a small breeze kicked up and the waves were gone. That only served to confirm my belief that they had been heat waves.
Heat waves are caused by varying densities of fluid (air in this case) refracting light passing through them. Usually the warmer fluid is rising, forming a convective cell. As it randomly snakes upward the background images are gently contorted by the light passing through the foreground fluid.
But what was forming the heat waves? As my eyes scanned the parking lot and Cypress needles, it seemed to me that the frost was heavier during the short period I had been standing there. That may have only been to my sight because of the increasing light as the sun rose, but it brought a possibility to mind. When frost forms, water vapor in the air turns directly into solid ice crystals on the grass or windshield. This process is called deposition, which is the opposite of sublimation, and skips the liquid state going either way. The heat given off by changing from gas to liquid and liquid to solid is about 8 times more than the heat given off by the same amount of liquid water cooling from 100 to 0 degrees Celsius. Needless to say, a significant amount of energy is given off by the deposition of frost. Frosty heat waves, that is shimmering amazing.*
*If my conclusion is correct












































Memory Lapse
Posted in 9/11, Cultural commentary, General, Remembering, tagged 9/11, Remembering on September 11, 2017| Leave a Comment »
I shared thoughts about 9/11 last year that I think still ring true. If you are interested, see “Has the World Really Changed?”
9/11 was not even mentioned at my school today. We went on as if it never happened. My students were not born until 2003. Two major hurricanes just hit back to back in the continental US. Political wrangling is more contentious than it has perhaps ever been in my lifetime. North Korea makes ever more credible threats with each passing year. Racial tension has again reared its ugly head in these United States. The economy is better and life is good. In other words, life has rendered us forgetful. No, that is a way of saying we have an excuse because some outside influence caused us to do what we would not have otherwise. No, we have either willfully forgotten or passively allowed forgetfulness. We don’t want to think about that event because it demands of us introspection about how we should react and will react. We would have to consider the continuation of dangers in the world which we know no solution for. Even more disturbing, we would have to consider that because of our own complicity we are part of the problem. Not me you say. I in no way caused 9/11. What have you done to make this a better, purer, kinder, stronger nation? Have you cried out to God for mercy? Have you sown peace and goodness in the land? Have you taken heed to God’s law and sought after His grace? I include myself. What have I done to remember the lessons of 9/11 that were never learned by this nation and forgotten by the few that did know them? I have much work to do in my personal life, but tomorrow I will convey the sense of what happened to my students who see it as textbook history, before their time. Allow your memory to lapse no more on this subject.
As to the memory of the events, I think that my daughter does them more justice than I am able just now. Here is what she said:
“My 8th grade English class was in the computer lab typing papers one Tuesday morning, when another teacher came in and told Mrs Ball (my teacher) to turn on the TV. Less than 10 minutes later, I watched in real time with shocked disbelief and trembling sadness as the Flight 175 crashed into the World Trade Center South Tower. Reports of the Pentagon being hit and speculation of other targets followed soon after. I saw the towers crumble. I saw the people running, covered in dust. I saw the NY police and firefighters. I saw the gaping hole in the Pentagon and the field in Pennsylvania. I saw the hysteria. I silently cried for those lost and prayed for our president.
The next day was so quiet. All planes were grounded.
In the following weeks however, the burst of nationalism was heard echoing across the country. “United We Stand!” “God bless America!” So many US flags appeared. So many people came together to grieve and hold each other up.
I still grieve. When I think of how easily we forget. When I consider the short lived community support. When I contemplate how quickly the crying out to God for help changed to reliance, expectation, and blame on the government.
September 11, 2001 ushered in a new era in our world. Ideas were shaken. Securities were questioned. Fear is the new normal.
So now what? Trust God.
The only way I have found to deal with truth and reality is to take all to Him who created it and me. Do I still feel the impact? Yes, but I don’t try to carry the burden.”
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