$5,000
Typed letter signed ("A. Einstein") to Mr. Hans Cassel, January 15, 1937, in ink on embossed stationary paper measuring 8 1/2" x 11" (2 pages). Einstein writing "Because of your recent letter I am going to make another shy attempt in the hopes that you adopt my simple arguments." (Cond: paper shows creases from folding, age toning, paperclip transfer marks. Provenance: Family of Dr. Hans Cassel, Boca Raton, FL (8000/10000)German to English Translation: The January 15, 1937 Mr. Hans Cassel Palo Also, CA Dear Mr. Cassel: I think you are one of those people, that although, open letters but you do not actually read them. So you did in the case of a detailed letter from me, in which I showed you, why your derivation in my opinion is incorrect. That’s why I stopped correspondence temporarily and declared it as pointless. Because of your recent letter I am going to make another shy attempt, in the hopes, that you adopt my simple arguments. 1.) There is a two phase system liquid-vapor there. The molecules of the liquid is surrounded by a permeable membrane. On this membrane we put a surface-comprehensive force. With that the pressure in the vapor phase will increase from Pₒ to P, according to this relationship: P-P= ɚ p, Whereby ɚ can easily be identified. 2.) The same relationship is valid, if the membrane that is under outer pressure is replaced by capillary pressure: P=2g/p One has then P=Pₒ + 2d g/p 3.) If now, in addition, there is a substance present, which accumulates on
Auctioneer:
Auction Gallery of the Palm Beaches
Date:
2011-06-27
