What company paid off its debts at the dawn of its existence by winning at a casino? Detailed answer

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What company paid off its debts at the dawn of its existence by winning at a casino? Detailed answer

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Which company paid off its debts at the dawn of its existence by winning at a casino?

In the early days of FedEx, founder Frederick Smith overcame numerous challenges. On one occasion, the company needed to pay $24 in fuel costs, and only $000 was in the account. Smith withdrew all the money, went to Las Vegas and won $5000 on blackjack.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What was the Tower of Babel made of?

Imagine that you live in ancient times in the legendary city of Babylon. You are tired of your old little house and you decide to build a big good house. It turns out that you could easily, as if in modern times, buy a brick for construction. There were several brick factories in Babylon, and each factory marked its bricks with a special stamp.

Babylon itself was surrounded by three rows of massive brick walls, and the famous Tower of Babel (according to legend, it began to be built four thousand years BC) was erected from dried raw clay brick, reinforced with palm leaves.

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In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

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Random news from the Archive

Effect of anions on the solubility of polymers 06.11.2021

Chemists from the USA and the Czech Republic have established a relationship between the curvature of the conditional surface of a macromolecule and dissociation constants for various cations and anions. It turned out that ions interact more strongly with a polymer if its planar structure deforms the network of water hydrogen bonds. This interaction helps the polymer to be in solution.

A group of scientists led by Jan Heyda from the University of Chemistry and Technology in Prague and Paul S. Cremer from the University of Pennsylvania investigated the interaction of weakly coordinating anions with polyethylene oxide polymer of different lengths. They suggested that molecules with different surface curvature affect the network of hydrogen bonds of surrounding water molecules in different ways, which, in turn, leads to a change in the degree of ion adsorption.

The authors showed the relationship between the ion adsorption energy and the degree of distortion of the hydrogen bond network. The results obtained confirmed the hypothesis that macromolecules with a flat surface strongly distort the structure of water and, therefore, interact well with weakly coordinating anions, which easily penetrate to the polymer surface through a deformed network of hydrogen bonds. On the contrary, the surface of most small molecules cannot be called flat, which results in no energy gain, high hydrophobicity, and poor solubility.

In this case, the main interaction of polymers with anions occurs precisely in the middle of the chain, since the hemispherical surface of the end groups poorly distorts the surrounding water. The average dissociation constants of SCN- were about 0,1 mol per liter for the middle of the chain and more than 2,4 mol per liter for its ends. The maximum energy gain resulting from the interaction of the polymer with thiocyanate was 5,3 kilojoules per mol.

The data obtained will affect not only the study of hydrophobic interactions and solution chemistry of polymers, but also other areas of science, for example, the study of supramolecular compounds of the guest-host type.

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