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Peter Hine

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72. Diane Elcano 99
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74. Peter Hine 97
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last 3 solved tasks
If 2a7bb + a97ca = 8a4ca find number abc. Multiple solutions may exist.
You can get into me quite easily but you can't get out of me without facing extreme difficulties. Who am I?
How many bowling balls are in that picture?

Gilbert Newton Lewis

Died 23 Mar 1946 at age 70 (born 23 Oct 1875). American chemist who collaborated with Irving Langmuir in developing an atomic theory. He developed a theory of valency, which introduced the covalent bond (c. 1916), whereby a chemical combination is made between two atoms by the sharing of a pair of electrons, one contributed from each atom. This was part of his more general octet theory, published in Valence and the Structure of Atoms and Molecules (1923). Lewis visualized the electrons in an atom as being arranged in concentric cubes. The sharing of these electrons he illustrated in the Lewis dot diagrams familiar to chemistry students. He generalized the concept of acids and bases now known as Lewis acids and Lewis bases.«

Abe and Esther are flying to ...

Abe and Esther are flying to Australia for a two-week vacation to celebrate their 40th anniversary. Suddenly, over the public address system the Captain announced, "Ladies and Gentlemen, I am afraid I have some very bad news. Our engines have ceased functioning and we will attempt an emergency landing. Luckily, I see an uncharted island below us and we should be able to land on the beach. However, the odds are that we may never be rescued and will have to live on the island for the rest of our lives!"
Thanks to the skill of the flight crew, the plane lands safely on the island. An hour later Abe turns to his wife and asks, "Esther, did we pay our $5,000 PBS pledge check yet?"
"No, sweetheart," she responds.
Abe, still shaken from the crash landing, then asks, "Esther, did we pay our American Express card yet?"
"Oh, no! I'm sorry. I forgot to send the check," she says.
"One last thing, Esther. Did you remember to send checks for the Visa and MasterCard this month?" he asks.
"Oh, forgive me, Abie," begged Esther, "I didn't send that one, either."
Abe grabs her and gives her the biggest kiss in 40 years.
Esther pulls away and asks, "What was that for?"
Abe answers, "They'll find us!"
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