Note: I have removed a small version of a photograph copied from Colin Berry’s blog at his request. Here is a link to it if you want to see it.
Colin Berry, in a posting “Heating linen cannot give a superficial coloration” says Dr. Paolo Di Lazzaro. Oh yes it can – and here’s the evidence… writes":
OH YES IT CAN!
Here, hot from the presses (literally!) is the result of the first experiment, performed yesterday, using my new clip-on oven thermometer.
It was carried out under the scrupulously-controlled experimental conditions only possible in the “British Shroud of Turin Advanced Physical and Chemical Research Institute” (which others know more simply as “Colin’s Kitchen”).
What am I missing? Why does he say an image he creates with a heated object is superficial? He writes:
Why then did the linen under the hot metal not char like the strip that was kept in the oven? Why is the image so superficial?
How does he know it is superficial? Because there is no char? Does the “British Shroud of Turin Advanced Physical and Chemical Research Institute” have a microscope? Is he just guessing?
What is Colin Berry talking about when he uses the word superficial?