by Niels Bohr (2021)   Redaktion: Niels Bohr Arkivet (2022)  
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1909, 12 May.

Letter? from Harald Bohr to Niels Bohr

A Copenhagen, Niels Bohr Archive, Harald Bohr Correspondence, HBC-BOHR-090512fb. Letter, handwritten by Harald Bohr. On the envelope: Hr. stud. mag. N. Bohr, Bredgade 62, Kopenhagen,Dänemark

Dear Niels!

Just 2 lines to let you know that the posed question whether there exists functions and so on – turned out after closer inspection to be easily answered, in that I have created an example. Thus, summability does not always lead to the nearest singularity but always to that borderline which divides the portions of the plane in that the ordinate is less than \(|t|\) some const. and the |portions the plane where this is not so. This is only so that you won’t have more to think about and will be in peace and quiet. A thousand greetings and best wishes for a good exam-period. Take it easy in the beginning, but don’t start writing too late so you have to rush at the end. Many greetings to Ma og Pa.

Yours devotedly
Harald.

P.S. I must just tell you the – for those who witnessed it, terrible amusing – amusing answer Hilbert gave 2 frightful ladies who are working “in collaboration” on a doctoral thesis on degree 6 curves and apparently don’t have a trace of an idea what this involves but who always say that things are going |splendidly; I was coincidentally standing close by when they once again, as they always at any occasion do, accosted Hilbert. When he asked how things were going, the vocal one replied “excellent”. “We each have 2 difficulties remaining which do not seem to be impossible to overcome”. Hilbert answered thus “that is amusing, then you can solve one before lunch, the other before dinner and still be able to take the evening off”. It would be difficult to find anyone as “stunned” to use a football parlance as the “difficult ladies” as they are everywhere known.

|Having arrived at the anecdotes, I should also tell following one, that Professor Reniger told yesterday at M. G. and which is really amusing and which he definitely claimed is true. “The previous Austrian Emperor was gifted a walking stick from Japan with a frightfully fine ivory handle, carved figures and so on. This same Emperor amused himself in his “spare time” with woodwork. One day, his adjutant comes in to the workshop to find the Emperor turning, or sawing, the tip off of the fine handle. “But why are you doing that your Majesty?” “The stick was too long for me.” “But why does your Majesty not saw some off the bottom?” “Fool, the stick wasn’t too long at the bottom but at the top.”

Now goodbye for real [Tegning af en tændstikmand]

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