(Jewish Daily Bulletin)
Emile Berliner, inventor of the telephone transmitter, the disk phonograph record and the radio microphone, has added another achievement in producing a device which “brings clear speech in a large hall within the realm of possibility, it is declared by W. J. Voss in a feature article in last Sunday’s Washington Post, headed “Berliner Solves Age Old Acoustics Problem.”
The invention consists of certain acoustic tiles involving the insertion of wire mesh cells into walls whereby Berliner has succeeded in clarifying reverbrations which according to Voss, “are not only clearly distinguishable, but bell-like in their tonal quality.”
After much experimentation, Berliner found that by forming a hollow space in the outer portion of the wall and covering this hollow space with a porous cement, he could produce a pleasing resonance where annoying reverberations were formerly given off. The cement cells used to bring about this acoustic improvement are in effect vibratory diaphragms.
Recently Mr. Berliner was called upon by a large financial institution in Karachi, India, to send sufficient cells and material there to remedy acoustic effects in their large board room.
JOSEPH LANDAU OPENS FUND FOR POLISH AVIATORS’ PLANE
Joseph Landau, New York manufacturer, a native of Warsaw, contributed $5,000 toward a fund of $75,000 to purchase a new aeroplane for the Polish aviators, Majors Idzikowski and Kubala, whose first effort to cross the Atlantic failed. Mr. Landau recently returned from Europe where he visited Poland and France. While in Paris, he met the fliers before their departure and went up in their plane.
In making the gift Mr. Landau said “I am of course interested in the promotion of aviation. Incidentally I am glad if my action contributes to the creation of good-will between Poles and Jews. Aviation is universal and I was struck with the courage and dauntlessness of the Majors in their attempt to cross the Atlantic. When Edouard Weisblatt, former aviator in the Russian army and the Polish Consul-General Thaddeus Maryanowski spoke of the plan for securing new equipment for the fliers, I was eager to start the fund with my contribution. “On my visit to Warsaw, I learned that there was a Jewish physician named Idzikowski but I do not know whether Major Idzikowski is his relative.”
Mr. Landau was a member of the reception committe to welcome the fliers.
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