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Plastic

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Plastic wrap is a thin plastic film typically used for sealing food items in containers to keep them fresh.

 


Plastic
A material with properties of a solid but capable of flowing under pressure.
Plate Tectonics ...

[11.0] Plastics
[11.1] NATURAL POLYMERS
[11.2] CELLULOSE-BASED PLASTICS: CELLULOID & RAYON ...

A plastic model of an aircraft is being tested inside a water tunnel. The blue, red and green dyes in the water help NASA see how air moves over the airplane. Image Credit: NASA
the study of how air flows around an object ...

The Plastic Instruments (wanted dead ...
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The plasticity of the surface layer of a planet - e.g., the ability of the surface layer to adjust its level according to the load (such as ice caps) that it has to carry.
Isothermal Change ...

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1 19 inch plastic toolbox, Popular Mechanics series.
1 Lead acid lawn tractor battery, Exide GT-235, maintenance free
2 Automotive battery side terminal connectors.
1 Styrofoam sheet, 1/2 x 16 x 16 inches.

A large plastic egg (atom) is given, one per person - each egg contains a split ping pong ball (nucleus) with a set number of either gumballs or m&m type candies (neutrons and protons) inside. Be sure to use different colors for protons and neutrons.

Then long plastic strips were attached to seal gaps below roof along rails as well as under gables. Finally roof gables and door were painted.
Even before the exterior was finished, I started to put equipment inside. ...

Amorphous or "plastic" sulfur can be produced through the rapid cooling of molten sulfur. X-ray crystallography studies show that the amorphous form may have a helical structure with eight atoms per turn.

Large-diameter plastic straw
Step 1. Hold a raw potato in one hand. While grasping the straw with the other hand, stab the potato with a quick, sharp motion. The straw should penetrate completely through the potato.

BOPACE: Boeing Plastic Analysis Capability for Engines
BOS: Bright Object Sensor
BOT: Beginning of Tape ...

thermoplastic films (NASA Thesaurus) Materials with a linear macromolecular structure that will repeatedly soften when heated and harden when cooled.

foamed plastics Plastic materials, used primarily for insulation, in which a foaming agent is used to provide minute voids to improve insulating qualities-often foamed in place within the structure.

Large Rubber or plastic sheet
Heavy round object, such as an 8-lb medicine ball or round watermelon
Smaller, lighter objects, such as tennis balls
3. Activity: ...

curing of coatings, forming of plastics, annealing, plastic welding, print drying. In these applications, infrared heaters replace convection ovens and contact heating.

As Susan Kleinmann once said, "I don't care if it's plastic, as long as it's in the infrared and you can see it".

Divers retrieved a "clear box" with holes that could accommodate protective biological safety gloves, as well as vials wrapped in plastic from a pond in the Frederick Municipal Forest.

The model, being constructed out of moulded plastics instead of the heavier fibreglass traditionally used until that time, was considered light at the time.

It consisted of a bismuth germanate crystal surrounded by a shield of borated plastic. Gamma rays striking the bismuth atoms produced a flash of light with an intensity proportional to the energy of the gamma ray which was recorded by detectors.

The aesthenosphere is kept plastic (deformable) largely through heat generated by radioactive decay. The material that is decaying is primarily radioactive isotopes of light elements like aluminum and magnesium.

The lens is mounted in a black plastic housing which can be pulled off from one corner once you have removed a "C-shaped" metallic band. The latter may not be present in all cameras and can be discarded once removed.

Slide frame with plastic windows with four 1/4-inch colored gelatin filter sheets taped inside. Use until they deteriorate and replace filter strips. Also, clear plastic window can be cleaned. A Don Parker invention.

In the 1950's through the 60's Aurora was the science fiction, comic book, and horror plastic figure model company.

In this context a model is an abstract construct or idea that is a simplified view of reality, not something made out of paper, wood, or plastic (or some good-looking person).

Mercury, Gemini, and Apollo programs overcame the problem of reentry by protecting the leading surface of the returning capsule with a specially developed heat shield, made of metals, plastics, ...

For some purposes cheap plastic casts of such gratings are suitable. Interference between the waves diffracted by the grooves causes maxima of intensity in directions determined by the wavelength, hence spectra are produced.

Having access to a great deal of wood, plastic and metal packaging used in freight and distribution, and my employers only too happy for me to remove it I immediately went into "scrounge mode", ...

Filters for ultraviolet, visible and infrared observations are normally coloured glass, dyed plastic or gelatin or similar that only allow a narrow waveband, typically about 100 nm wide, of radiation through.

gun to fire off rounds of one-ounce plastic bullets at 16,000 mph. Their gun tests, which simulated an asteroid collision, ...

The first and third may well be plastic bladders, whose volume can adjust.

The asthenosphere is a part of the upper mantle that exhibits plastic properties. It is located below the lithosphere (the crust and upper mantle), between about 100 and 250 kilometers deep.

An aperture stop is easily made by cutting a circular disk, equal in diameter to the interior width of the telescope opening, from stiff cardboard or plastic.

Camera shops usually carry plastic cases that have die-cut foam inside that can be cut and rearranged to fit your equipment. Most astronomy supply companies also offer cases and carrying bags that are more specially tailored.

Because people normally think of glass or plastic lenses as bending light, we call any massive object that bends light rays a "gravitational lens.

A carefully ground or molded piece of glass, plastic, or other transparent material that causes light to bend and either come together or spread apart to form an image.
Lens doublet ...

Aesthenosphere - A layer of plastic, deformable rock located in the upper mantle of a planet directly below the lithosphere ...

In general, a viral infection produces one of four effects in a plant or animal cell: inapparent effect, in which the virus lives dormantly in the host cell; cytopathic effect, in which the cell dies; hyperplastic effect, ...

The orbiter's radiation detector is characterizing the threat cosmic rays and energetic particles will pose to astronauts at the moon. The instrument evaluates how plastic analogs to human tissue react to radiation exposure, ...

It is more plastic than adjacent layers because the combination of pressure and temperature places it near (or slightly above) the melting point. Asthenospheric movements may disrupt the planet's surface.

Apollo -- In Greek mythology, one of the twelve Olympian gods. God of prophecy, healing, archery, music, youth, plastic arts, science and philosophy.

It is most likely that volcanism is responsible for most of the resurfacing, with crustal plasticity responsible for early shaping of most of the heavily cratered regions into intercrater plains between areas of heavily cratered terrain.

The thin rod would normally put a notch in the soft wood so I placed a thin piece of polystyrene plastic (cut from the Bogen Ball mount packaging) between the rod and the wooden big gear.

work gloves (the thicker the better - use the sort that are coated in plastic)
a rubber / wooden mallet or hammer
a large wooden spoon or spatula
a few floor cloths
a set of kitchen scales
safety glasses ...

Radioactivity probably heated the Moon a little, but not sufficiently to transform it from a warm, plastic object to a completely liquid one. The chemical differentiation now inferred in the Moon's interior must have occurred during this period.

Stay away from anything with plastic lenses or that says "permanent focus". Be sure to get one with a safety-cord and be sure to use it. (I've seen people just drop their binoculars because they thought it was looped over their neck! ...

The inner core and crust are solid; the outer core and mantle layers are plastic or semi-fluid.

You may have copper cooking pans but the handles are composed of insulating plastic. Even if a good insulating material is at high temperature you can handle it briefly because the rate of heat exchange between you and that material is very slow.

The Nova proposal suggests the use of particle board as a cheap way of getting a large amount of less dense mass. The active detector is often liquid or plastic scintillator, read out with photomultiplier tubes, ...

to have the BB follow an arc that meets the edge of the Jupiter disk at the height of the BB's arc, and then continue to roll off the side of the glass surface at about the "latitude" of the ramp. Place a "bucket" there to catch the BB. The plastic ...

Gilgamesh's conquest of the divine bull was placed under Taurus; his slaying of the tyrant Khumbaba (the prototype of Geryon) in the fifth month typified the victory of light over darkness, represented in plastic art by the group of a lion killing a ...

See also: Time, Earth, Light, Second, Field