Skip to main content

Ice Fog

This morning I'm in Greensboro, NC.  The temperature is just at freezing.  It looked foggy. 

Then I wondered if the fog was mostly micro-ice crystals - perhaps suspended in the air or slowly falling downward.  Then, I wondered how this was true could be proved.  Most solutions I considered would affect the crystals - melting them if they were there - or form new ice crystals. This is kind of an uncertainty.  Almost anything you can imagine to do may change what you want to prove.  That is, you cannot see the micro ice crystals without changing them or creating them.

So, how can this be done?

BTW, how small can ice crystals be?  Micro-size?  Nano-size?
Labels:

Comments

Post a Comment

Please Comment.

Popular posts from this blog

UNCERTAINTY IS CERTAIN

  Uncertainty is Certain G. Donald Allen 12/12/2024 1.       Introduction . This short essay is about uncertainty in people from both secular and nonsecular viewpoints. One point that will emerge is that randomly based uncertainty can be a driver for religious structure. Many groups facing uncertainty about their future are deeply religious or rely on faith as a source of comfort, resilience, and guidance. The intersection of uncertainty and religiosity often stems from the human need to find meaning, hope, and stability in the face of unpredictable or challenging circumstances. We first take up the connections of uncertainty to religion for the first real profession, farming, noting that hunting has many similar uncertainties. Below are groups that commonly lean on religious beliefs amidst uncertainty.   This short essay is a follow-up to a previous piece on certainty (https://used-ideas.blogspot.com/2024/12/certainty-is-also-emotion.html). U...
Post a Comment
Read more

Where is AI (Artificial Intelligence) Going?

  How to view Artificial Intelligence (AI).  Imagine you go to the store to buy a TV, but all they have are 1950s models, black and white, circular screens, picture rolls, and picture imperfect, no remote. You’d say no thanks. Back in the day, they sold wildly. The TV was a must-have for everyone with $250 to spend* (about $3000 today). Compared to where AI is today, this is more or less where TVs were 70 years ago. In only a few decades AI will be advanced beyond comprehension, just like TVs today are from the 50s viewpoint. Just like we could not imagine where the video concept was going back then, we cannot really imagine where AI is going. Buckle up. But it will be spectacular.    *Back then minimum wage was $0.75/hr. Thus, a TV cost more than eight weeks' wages. ------------------------- 
Post a Comment
Read more

Principles of Insufficiency and Sufficiency

   The principles we use but don't know it.  1.      Introduction . Every field, scientific or otherwise, rests on foundational principles—think buoyancy, behavior, or democracy. Here, we explore a unique subset: principles modified by "insufficiency" and "sufficiency." While you may never have heard of them, you use them often. These terms frame principles that blend theory, practicality, and aspiration, by offering distinct perspectives. Insufficiency often implies inaction unless justified, while sufficiency suggests something exists or must be done. We’ll examine key examples and introduce a new principle with potential significance. As a principle of principles of these is that something or some action is not done enough while others may be done too much. The first six (§2-6) of our principles are in the literature, and you can easily search them online. The others are relatively new, but fit the concepts in the real world. At times, these pri...
Post a Comment
Read more