Which household appliance was first advertised for the idea of a hair dryer? Detailed answer

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

Which household appliance was first advertised for the idea of a hair dryer? Detailed answer

Big encyclopedia for children and adults

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

Did you know?

Which household appliance was first advertised for the idea of a hair dryer?

The idea of a hair care device first appeared in an advertisement for a "Pneumatic" vacuum cleaner produced by an American firm in the early twentieth century.

The advertisement showed a lady sitting at a dressing table and drying her hair with a stream of air from the "exhaust" pipe of a vacuum cleaner. The text said that not a drop of energy is wasted in a vacuum cleaner: while the front end of the apparatus sucks up dust, the clean, motor-heated air coming out of the other end of the device can be used to dry hair.

It is not known how many buyers of "Pnevmatik" took advantage of this advice, but the idea was to attract the attention of specialists.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Where do icebergs come from?

For us, icebergs are wonderful objects to study and observe. But for ocean-going ships, they pose a huge danger.

One of the worst maritime disasters occurred on the night of April 14, 1912, when the Titanic hit an iceberg, killing 1513 people.

An iceberg is a breakaway part of a glacier. This happens when a glacier (which resembles an ice river) moves down a valley and reaches the sea. The edge of the glacier breaks off and forms a floating iceberg.

Some icebergs appear in fiords - narrow bays with high sheer walls, from where they exit into the oceans. The edges of some icebergs are broken or smoothed by waves. A significant underwater part of them remains under the surface of the water, which occasionally, having broken off, unexpectedly floats to the surface in the form of icebergs.

Icebergs vary in size. Small, 5-10 meters in diameter, sailors call "growlers". But more often there are icebergs with a diameter of more than 100 meters. Individual ice mountains reach a diameter of 1000 meters.

The density of an iceberg is about 90% that of water, so only one ninth of this ice mountain is above the surface, and eight ninths are hidden under water. Therefore, an ice floe 45 meters high above the water surface goes 200 meters deep. It is hard to imagine how much ice such a mountain contains. After all, some of them weigh 180 tons.

Since the main part of the iceberg is under water, its movement is influenced not by the wind, but by sea currents. Icebergs gradually reach warm latitudes, where they melt. Only a few reach the warm Gulf Stream, east of Newfoundland in Canada. They represent the greatest danger to ships. Therefore, the Coast Guard in the United States constantly monitors the appearance of icebergs, alerting ships to the location of these ice mountains.

Test your knowledge! Did you know...

▪ Who built the first bridge?

▪ What are the highest mountains on Earth?

▪ Why did ancient Russian brides get married in mourning attire?

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:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

New 64-bit RISC microprocessor TMPR4955BFG-300 23.01.2003

TOSHIBA ELECTRONIC COMPONENT announced the release of a new TMPR64BFG-4955 300-bit RISC microprocessor based on 0,13 micron technology.

Main features of the new microprocessor: clock frequency 300 MHz; supply voltage 3,3 V, power consumption 0,6 W; associative cache memory (32 KB - instructions, 32 KB - data); there is a special node for working with floating point, fixed point and floating point operations are performed independently. The microprocessor is produced in a QFP-160 plastic case.

Other interesting news:

▪ New acoustics from DENON

▪ BLE chip CC2640R2

▪ The glaciers of the Arctic are filled with life

▪ Smart electric scooters Gogoro

▪ The brain of the bee will be copied

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Radioelectronics and electrical engineering. Article selection

▪ article Window to Europe. Popular expression

▪ article How Do Archaeologists Know What They're Finding? Detailed answer

▪ article The functional composition of Akira TVs. Directory

▪ article A good crystal filter for CW and AM. Encyclopedia of radio electronics and electrical engineering

▪ Tachometer article. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

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