Aluminum foil and materials on its basis are widely applied in packaging thanks to the unique protective and decorative properties.
Analyzing its functional properties, we can easily see that it has a number of very significant advantages compared to other packaging materials.
Proof. When the thickness of the foil 0.025 mm and higher it is almost impermeable to vapours and gases. Even with the thickness of 0.009 mm, the degree of water vapor transmittance is only 0.01 g/m2 per day, which can be considered more than acceptable.
The court, using for movement the muscular strength of a man, never belonged to the category of speed. The only exception is racing boats for rowing, which is the most fleet of vessels musculoides. Due to their known good configuration and the most complete use of the muscle energy of athletes, boats-“eight” is capable of two-kilometer distance to reach the speed of 12 knots. But this does not mean that this speed is the limit of possibilities of human movement on the water surface. If you deviate from canonical constructions of rowing boats, designed for official competition, then there is a possibility of creating a spacecraft-muskurahaton reach speeds up to 20 knots!
Before you start talking about the car “Adrenaline” – built student engineering group of Moscow automobile and road Institute (MADI) to participate in the international competition “Formula Student”, it is necessary to say a few words about the history of this event.
Australian designer Philip Legerski presented a draft promising sports electric vehicle, able to accelerate to a maximum speed of 500 kilometers per hour.
The soles of the feet when digging the ground, will not be so uncomfortable if the shoulders of the shovel to pull the trim rubber or plastic garden hose.
Wall made from cloth pockets and cloth the same cloth-the basics, which hung on the wall in the bathroom or the nursery, is an indispensable repository for all sorts of small objects or toys that do not require any
What only unexpected use is not find the inflatable design of modern soft materials. The picture shows developed by one of the Australian firms soft “Jack” to lift the weakened animals.
A power transformer is to convert alternating current of one voltage to alternating current of another voltage at a constant frequency. The device in the normal “classic” transformer all know from school physics lessons. The principle of operation is based on electromagnetic induction. In the primary winding under the action of tension in the core induces a magnetic flux proportional to this voltage, which, in turn, an electromotive force of self-induction (EMF) in the secondary windings is directly proportional to the number of turns of these windings.
To look into the future, it is enough to have leisure, curiosity and imagination. So I predicted the crisis, and the subsequent hatred of the bankers.
Film sticky tape — very convenient packaging and sealing joints material. And if operations on the gluing has to do a lot — there is a need for them to “mechanize”.