The comment about a human being able to survive for 45 minutes at over 400 degrees fahrenheit has very little to do with wooden tonearms, as well as being untruthful. I suspect that in a sealed chamber, at that temperature, the first real breath and a human body would know that death is very close.
I believe the comment about the level of heat generated at the stylus/ vinyl interface during replay was made in counter to someone else's comment suggesting that movement within a wooden tonearm due to atmospheric variations would be sufficient as to make an accurate and stable cartridge setup with a wood-wanded tonearm, impossible, or even difficult, which is just not true. Someone laid out some figures about movement in wood without telling the whole story. First, different woods move different amounts. Second, wood movement occurs radially at a much higher rate than it does in a longitudinal direction. Making a tonearm wand that stays true to it's axis can be accomplished easily enough if care is taken. Change in length of a wooden tonearm wand is pretty much a non issue given the short length of the wand, the fact that it is stabilized, and that wood just does not move that much longitudinally.
Also, that significant heat is generated at the stylus is not really a problem. Who knows though.. maybe the next significant advances in cartridge technology will come with nano-liquid cooled cantilevers ;)
I believe the comment about the level of heat generated at the stylus/ vinyl interface during replay was made in counter to someone else's comment suggesting that movement within a wooden tonearm due to atmospheric variations would be sufficient as to make an accurate and stable cartridge setup with a wood-wanded tonearm, impossible, or even difficult, which is just not true. Someone laid out some figures about movement in wood without telling the whole story. First, different woods move different amounts. Second, wood movement occurs radially at a much higher rate than it does in a longitudinal direction. Making a tonearm wand that stays true to it's axis can be accomplished easily enough if care is taken. Change in length of a wooden tonearm wand is pretty much a non issue given the short length of the wand, the fact that it is stabilized, and that wood just does not move that much longitudinally.
Also, that significant heat is generated at the stylus is not really a problem. Who knows though.. maybe the next significant advances in cartridge technology will come with nano-liquid cooled cantilevers ;)