Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

What did Captain Cook give his men to fight scurvy? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Comments on the article Comments on the article

Did you know?

What did Captain Cook give his men to fight scurvy?

a) limes.
b) Lemons.
c) sauerkraut.
d) Rum with blackcurrant.

No lemons or limes were ever found aboard Cook's ships. Of all that he had, sauerkraut and a mixture of concentrated fruit juices, the so-called "rob" ("rob"), would be most suitable as a medicine. In order to preserve the product on a long sea voyage, both were pre-boiled, so that there was almost nothing left of vitamin C.

By the time it became standard practice to supply British sailors with lemon juice, Cooke had been in his grave for twenty years.

Scurvy was a serious problem on long sea voyages. Magellan, for example, lost most of his team while crossing the Pacific Ocean precisely because of scurvy. Now we know that scurvy occurs due to a lack of vitamins C and B, leading to the destruction of the somatic cells of the body - but in the XNUMXth century, attitudes towards it were based more on superstition than on the basis of knowledge. Many sailors sincerely believed that it was enough for them to touch the ground - and the disease would disappear by itself.

A real breakthrough in the fight against this terrible disease was the publication of the work of the Edinburgh physician James Lind "Treatise on scurvy" (1754), where the author strongly recommended the use of citrus fruits and fresh vegetables.

Legend has it that scurvy bypassed Cook's ships thanks to his enlightened approach, free from prejudice and superstition. However, it seems to us that Cook simply did not pay attention to her. The ship's logs of that time confirm that scurvy was not uncommon on all three of the captain's voyages, although, oddly enough, there were only a few deaths.

When, in 1795, the Admiralty finally ordered ships to be supplied with citrus fruits (on Lind's recommendation), it was lemon juice, not lime juice. The effect was truly amazing.

In the middle of the XNUMXth century, lemon began to be replaced by lime - for economic reasons (limes were grown by a British merchant in the colonies, while lemons were grown in the Mediterranean by Johnny the Foreigner). The scurvy paid off with a vengeance for such savings - ironically, lime contains very little vitamin C.

The first officially recorded use of the nickname "lime-juicer" (later - "limey" (Literally - "one who drinks lime juice") in relation to the British (especially to English sailors and immigrants in the colonies) dates back to 1859. In its pure form, vitamin C was obtained only in the 1930s - then it got its current name. The chemical name for vitamin C is ascorbic acid. "Ascorbin" means "against scurvy".

Author: John Lloyd, John Mitchinson

 Random interesting fact from the Great Encyclopedia:

What caused the death of a swindler who called herself Princess Tarakanova?

In the famous painting by Flavitsky "Princess Tarakanova" the heroine is depicted before her death during the St. Petersburg flood of 1777. However, the real swindler, who was called Princess Tarakanova and pretended to be the daughter of Elizabeth Petrovna and the sister of Emelyan Pugachev, died in captivity from consumption two years earlier.

 Test your knowledge! Did you know...

▪ Who Invented Brands?

▪ Who created the first plane?

▪ What famous child character first looked like a white dog?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

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. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Rumors about the demise of CRT displays did not materialize 25.05.2004

Samsung SDI, a division of the South Korean display giant, has announced its latest development, the thinnest CRT display for digital TVs to date.

According to Samsung, the new display is not only not inferior in thickness to LCD panels, but also surpasses them in quality, and is also much cheaper to manufacture. So the market will soon expect not complete oblivion, but a new peak in the popularity of CRT displays, Samsung claims.

The introduction of the most advanced manufacturing technology will allow Samsung to reduce the cost of widescreen TV panels compared to their counterparts from competitors, produced on the lines of the sixth generation.

In recent years, traditionally thicker CRT displays have given way to thin LCD or plasma panels in digital TVs. But now, with the launch of a new technology that will make CRT displays thinner and much cheaper than LCD and plasma displays, Samsung says SDI should brace itself for a new boom in traditional CRTs.

So the widespread belief in the industry about the imminent demise of CRT displays can be called more than exaggerated, according to Samsung.

Other interesting news:

▪ Ants can predict earthquakes

▪ Star farthest from Earth discovered

▪ Atomic television

▪ hydrogen bubble

▪ man on earth

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Protection of electrical equipment. Article selection

▪ article Foreign literature of the XX century in brief. Part 2. Cheat sheet

▪ article Which airline is the shortest in the world? Detailed answer

▪ article Vodyanik black. Legends, cultivation, methods of application

▪ article Combined KB antenna. Encyclopedia of radio electronics and electrical engineering

▪ Telekinesis article. Focus secret

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024