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

Where can you buy baby condoms? 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?

Where can you buy baby condoms?

According to a study commissioned by the Swiss government, a significant proportion of teenagers who have had sex do not use condoms because they are too large.

Especially for boys from 12 to 14 years old, the largest condom manufacturer in Switzerland has launched a special Hotshot brand on sale. Such products have a diameter of 45 mm with a standard of 52 mm.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

Who first explored the North Pole?

The two polar regions surround the Earth's geographic poles. They are called the North Pole and the South Pole. The northern polar region - the Arctic was of interest to people since ancient Greece, and maybe even earlier.

It is believed that the famous Greek explorer Pitis was the person who discovered the Arctic. In the IV century BC. e. he set sail from the Mediterranean north to the border of the Arctic region. Perhaps northern peoples (for example, those who lived in Norway and Britain) sailed to the northern seas before, but written evidence proving this has not been preserved.

In the 1903th century the great exploration of the North and the Northeast began. Many researchers reached the Arctic region and explored it. These studies continued until the beginning of the XNUMXth century, and in XNUMX an expedition headed by the Norwegian explorer Roald Amundsen set off to the pole. Scientists intended to explore directly the North Pole. American Admiral Robert Edwin Peary led an expedition across the ice of the polar sea from a base located on the northern coast of Ellesmere Island.

On April 6, 1909, he became the first person to reach the North Pole. The first flight over the North Pole, started from Svalbard, was made by the American explorer Richard E. Beard on May 9, 1926.

 Test your knowledge! Did you know...

▪ How did democracy come about?

▪ Where and when did the epidemic of laughter break out, engulfing about 1000 children?

▪ How do emperor penguins cooperate to keep warm?

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

Addonics 10GbE network adapter 14.06.2016

Network infrastructure with speeds of the order of 10 Gb / s is rapidly becoming cheaper. A little more - and simple five- and eight-port switches will become available to ordinary users. And this is logical: the volume of content is growing and wired local area networks at a speed of 1 Gb / s may no longer satisfy the owners of large home storage systems. The simplest and cheapest solution is a point-to-point solution, where the connection is made directly by optical or copper cable, and the cards use the appropriate SFP+ transceivers.

But twisted-pair copper is more common, and often the cables are already installed, so why not use the existing infrastructure? Previously, ordinary users were stopped from using 10GBASE-T technology by equipment prices, even for network cards, not to mention switches. But prices are falling, and more and more affordable solutions are appearing on the market. These include, for example, the new network adapter Addonics ADN10GPX4, estimated at only $200.

This is a very small expansion card with PCI Express x4 version 2.0 interface, supports jumbo frames up to 16K bytes in size and sending in 64K bytes in packets (Large Send).

The card does not require a Category 6 or 10 cable. In the case of using a CAT5 cable, the data transfer rate reaches 5 Gb / s, but a fifth category cable (CAT2,5e) can also be used, then the speed will drop to 45 or 2.6.32 Gb / s, which is enough for the owners of many home storage systems. Of course, RJXNUMX, which has long been familiar to everyone, is used as a connector, and the adapter can be used in compatibility mode in GbE class networks. All modern operating systems are supported, including Linux kernel version XNUMX or higher.

Other interesting news:

▪ MSP430FG6626 - microcontroller for portable measuring devices

▪ Cultivation of GM tomatoes approved for cancer, diabetes and dementia

▪ Artificial intelligence will look for extraterrestrial life

▪ Shepherd robots

▪ M25P64 serial flash chip

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Note to the student. Article selection

▪ article Life after life. Popular expression

▪ article How does a new flower grow? Detailed answer

▪ article Common gooseberry. Legends, cultivation, methods of application

▪ article Simple external microphone. Encyclopedia of radio electronics and electrical engineering

▪ article Microphone amplifier on the KM551UD2 chip. Encyclopedia of radio electronics and electrical engineering

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