A plastic bag is a packaging that has recently been the subject of heated discussions: on the one hand, it is the most affordable and convenient way to package anything (from food to household goods), on the other hand, it is a threat to the environment. In Russia, this type of package is still very relevant and widespread, and therefore we will take a closer look at the technology of their production.

Modern laboratory test tubes are made of two materials: glass and plastic. Glass has long stood the test of time, so all its advantages and disadvantages are well known. Plastic test tubes appeared relatively recently. However, they are actively and successfully used in medical institutions and laboratories. Like any other material, laboratory plastic has its advantages and disadvantages. Advantages Pros of polyethylene terephthalate (PET) tubes: Low cost.

Alexander Sergeev and Robert Nigmatulin Alexander Sergeyev and Robert Nigmatulin were held in the second round of elections of the President of the Russian Academy of Sciences. This was announced by Indicator.ru by Svetlana Popova, an adviser to the media and public relations of the acting President of the Russian Academy of Sciences Valery Kozlov.

Modern laboratory test tubes are made of two materials: glass and plastic. Glass has long passed the test of time, so all its advantages and disadvantages are well known. Plastic tubes appeared relatively recently. However, in medical institutions and laboratories they are used actively and successfully. Like any other material, laboratory plastic has its advantages and disadvantages. Advantages "Pros" test tubes made of polyethyleneterftalat (Pet): Low cost.

Vitaly Matsarsky In the summer of 1967, 24-year-old graduate student Jocelyn Bell finished the debugging of the radio telescope, built by her with colleagues on the project of her supervisor Anthony Hugaisha. The radio telescope looked very unpresentable - it was an extensive wasteland in the vicinity of Cambridge in the size of almost 60 tennis courts, squeezed by wooden pillars, between which the wires that served as dipole antennas were stretched.

One day people will learn to live on Titan, Saturn's largest moon. These words begin the book Beyond Earth, written by planetary scientist Amanda Hendricks and science journalist Charles Wohlforth. Not on Mars, as was believed for many years, but on Titan, with its dense atmosphere, mild climate and inexhaustible reserves of fuel and water, it is possible to create an autonomous colony.

Olga Orlova The construction of the Polytechnic Museum in Moscow began in 1874. Since then, the museum has experienced a revolution, wars, and even modernization. In 2013, the historical building was closed for reconstruction. The exposition and laboratories of the museum temporarily moved to other sites: Pavilion No. 26 at VDNH, technopolis "Moscow" in the territory of the former Moskvich plant in textiles and the ZIL Cultural Center near the Avtozavodskaya metro.

Svetlana Tolchelnikova The new director of the Pulkovo Observatory Nazar Robertovich Ihsanov and Fano representatives propose to close observations in Pulkovo, after which this federal state budgetary institution of science loses the status of the observatory (from the Latin Observare - to observe). It is necessary to explain what it is proposed to be abandoned and what is proposed in return.

An important role in the events in Myanmar - not the present, but that took place about thirty years ago - played banknotes of very strange, at least for the decimal system, nominal nominalists: 35, 45, 75 and 95 kyat. This story seems especially instructive in the light of the current popularity of astrology and numerology. Let's start in 1946.

I got up for a month - and from the fog Light a deserted edge ... F. Tyutchev Larisa Melikhova Recently, the word “fake” has been firmly included in the Russian language, which today characterizes many aspects of our life. We will leave the policy aside, take the science, the sphere of activity of the Dissernet community: in a sense, all the work of Dissernet is a tireless struggle with Fake.

Natalia Reznik The vast majority of eukaryot propagate sexually, but not everyone is easy to observe in this process. In many unicellular organisms, it is shrouded in a halo of mystery and depends on external conditions, such as humidity, temperature or the presence of nutrients, concentration of carbon dioxide or light. Now, microbial “Aphrodisiacs” have been added to this list - proteins released by bacteria in the external environment. They found them by chance.

A modern washing machine is a reliable electronic appliance. However, for it to work for a long time and uninterruptedly, it requires proper operation and timely care. Correct installation of equipment will allow you to avoid repairs. You can order installation of washing machines here http://masternadom24.ru . Improper installation of the machine provokes its early failure. For example, lack of grounding leads to damage to the electronics.

Ekaterina Buz Alpina Non-Fixes publishing a book by the translation of the book by the English historian Jonathan Harris “The Lost World of Byzantium”, the Russian version is “Byzantium. The history of the disappeared empire. " For the first time, the book was published by Yale University Press in 2015. The author is a professor at the Department of History and the Institute of Hellenism at the Royal College of Holloway University London.

Modern washing machine is a reliable electronic technique. However, in order for it to work for a long time and uninterruptedly, she needs proper operation and timely care. Avoid repairs will allow the correct installation of the equipment. You can order the installation of washing machines here http://masternadom24.ru . Incorrect installation of the machine provokes its early failure. So, for example, the lack of grounding leads to a breakdown of electronics.

Polyethylene package is a packaging around which fierce discussions have recently been conducted: on the one hand, this is the most affordable and convenient way to pack anything (from food products to household goods), on the other hand, a threat to ecology. In Russia, this vit packages is still very relevant, widespread, and therefore we will consider in more detail the technology of their manufacture.