When heat is applied the components react and cross-link.

When this gene was inserted into tomato and tobacco cells ( see RNA interference ), the cells were able to withstand environmental stresses like salt, drought, cold and heat, far more than ordinary cells.

When heat is used in the preparation of food, it can kill or inactivate potentially harmful organisms, such as bacteria and viruses, as well as various parasites such as tapeworms and Toxoplasma gondii.

When the heat release oscillations are in phase with the pressure oscillations, the Rayleigh Index is positive and the magnitude of the thermo acoustic instability is maximised.

When exposed to sunlight, artificial light, or infrared radiation ( even the heat of a hand nearby can be enough ), the vanes turn with no apparent motive power, the dark sides retreating from the radiation source and the light sides advancing.

When a radiant energy source is directed at a Crookes radiometer, the radiometer becomes a heat engine.

When a small increment of heat is gained by a calorimetric body, with small increments, of its volume, and of its temperature, the increment of heat,, gained by the body of calorimetric material, is given by

When both were prepared for flight, Daedalus warned Icarus not to fly too high, because the heat of the sun would melt the wax, nor too low, because the sea foam would soak the feathers.

When brought to a boil, the steam produced in the lower pot transfers heat to the upper pot.

When surfaces in contact move relative to each other, the friction between the two surfaces converts kinetic energy into heat.

"," When the engine absorbs heat energy, the absorbed heat energy comes with entropy.

" ( heat energy ), " When the engine performs work, on the other hand, no entropy leaves the engine.

When heat is added to a thermal system, the change in entropy is the increase in mass-energy divided by temperature:

When heat is applied to the meat a chemical reaction happens that turns the hemoglobin white.

When this insulation is insufficient to maintain body temperature, they may resort to shivering -- rapid muscle contractions that quickly use up ATP, thus stimulating cellular metabolism to replace it and consequently produce more heat.

When workers from the William Beardmore and Company Steel Works in Glasgow were dying from the large amounts of beer drunk to quench their thirst from the heat of the steel works, an alternative was sought.

When ice melts, it absorbs as much energy as it would take to heat an equivalent mass of water by 80 ° C.

When the blade of an ice skate passes over the ice, the ice undergoes two kinds of changes in its physical state and a change in temperature due to kinetic friction and the heat of melting.

When an electron absorbs energy either from light ( photons ) or heat ( phonons ), it receives that incident quantum of energy.

When a meteoroid enters the atmosphere, frictional, pressure, and chemical interactions with the atmospheric gasses cause the body to heat up and emit light, thus forming a fireball, also known as a meteor or shooting / falling star.

When thrown against a hard surface, the glass would shatter and the contents would instantly ignite, liberating choking fumes of phosphorus pentoxide and sulphur dioxide as well as producing a great deal of heat.

When the Union Internationale Motonautique, the world governing authority for powerboat racing, introduced the World Offshore Championship in 1967 as a memorial to Sam Griffith, the American founder of modern offshore racing, the course was found to be too short at to qualify as a championship heat.

When paper electrophoresis was to be used for preparation, eight strips of a whole serum sample or a chromatographic fraction concentrated by negative pressure dialysis were run/chamber under the conditions described above.

When Kitti was alive -- and he remembered the pressure of her hand resting lightly on his arm -- she had been the center of his life.

When a parcel of air descends, the pressure on the parcel increases.

When the pressure applied on a parcel of air decreases, the air in the parcel is allowed to expand ; as the volume increases, the temperature falls and internal energy decreases.

When the partial pressure of is reduced, for example when a can of soda is opened, the equilibrium for each of the forms of carbonate ( carbonate, bicarbonate, carbon dioxide, and carbonic acid ) shifts until the concentration of in the solution is equal to the solubility of CO < sub > 2 </ sub > at that temperature and pressure.

When a manipulation is performed, the applied force separates the articular surfaces of a fully encapsulated synovial joint, which in turn creates a reduction in pressure within the joint cavity.

When lying down, the cerebrospinal fluid as estimated by lumbar puncture is similar to the intracranial pressure.

When a multi-component liquid is heated, the vapor pressure of each component will rise, thus causing the total vapor pressure to rise.

When the total vapor pressure reaches the pressure surrounding the liquid, boiling occurs and liquid turns to gas throughout the bulk of the liquid.

When a binary mixture is evaporated and the other component, e. g. a salt, has zero partial pressure for practical purposes, the process is simpler and is called evaporation in engineering.

When Danny did return to New York, his father did not pressure him to return to school or to get a job, giving his son the chance to mature and discover his own abilities.

When the transformation occurs at constant pressure:

When a system, for example, n moles of a gas of volume V at pressure p and temperature T, is created or brought to its present state from absolute zero, energy must be supplied equal to its internal energy U plus pV, where pV is the work done in pushing against the ambient ( atmospheric ) pressure.

When the process of escape and return reaches an equilibrium, the vapor is said to be " saturated ," and no further change in either vapor pressure and density or liquid temperature will occur.

When a cartridge is fired, the internal pressure expands the case to fit the chamber in a process called obturation.

When the hats are closed, the pressure holding them together can be varied by varying the foot pressure.

When the Australian television programme 60 Minutes challenged her to demonstrate how she could live without food and water, the supervising medical professional Dr. Beres Wenck found that after 48 hours Jasmuheen displayed symptoms of acute dehydration, stress and high blood pressure.

When colonial rule was established and efficiency was sought, partly because of settler pressure, newly educated younger men were associated with old chiefs in local Native Councils.

When I show up he will know you are a good wife to have told him about it ''.

When the Know-nothings get control, it will read, All men are created equal except Negroes and foreigners and Catholics.

When the reactionary response is thus bolstered by an intellectual defense, the characteristics of that defense are explicable only in terms of the basic attitudes of unanalyzed reaction.

When combined with the metaphysical notion that pure forms of this universe are best appreciated when least embodied in a material substratum, it becomes clear that while earth will be dross on a scale of material-formal ratios, celestial bodies will be of a subtle, quickened, ethereal existence, in whose embodiment pure form will be the dominant component and matter will be absent or remain subsidiary.

She used to tell me, `` When I stand there and look at the flag blowing this way and that way, I have the wonderful, safe feeling that Americans are protected no matter which way the wind blows ''.

When we consider the disorganized state of the world community, and the legacy of predispositions adversely directed against all who are identified as Jews, it is obvious that the struggle for the minds and muscles of men needs to be prosecuted with increasing vigor and skill.

When these fields are surveyed together, important patterns of relationship emerge indicating a vast community of reciprocal influence, a continuity of thought and expression including many traditions, primarily literary, religious, and philosophical, but frequently including contact with the fine arts and even, to some extent, with science.

When different colors are used, she is just as likely to color trees purple, hair green, etc..

When finally the two bedraggled men reach their friend's home, Voltaire's fears are once again aroused.

`` When are you to leave ''??

When the roof blocks are all in place, the final rows of wall blocks are mortared into position.

When the aid operations are reorganized the Peace Corps should remain a semi-autonomous, functional unit.

When the budget goes to trustees for approval it is the president's budget, to which his faith and credit are committed ; ;

When they have 4 to 6 leaves and are thrifty little plants, it's time to set them out where they are to remain.

When aircraft are no longer helpless on airfields, they are no longer vulnerable to Aj.

When more than two figures are separated by subtraction symbols the subtraction must be carried out from the left to right if the result is to be correct.

When they're on, the top edges are planed even with the sheer batten.

When painting, Mason's physical eyes are half-closed, while his mind's eye is wide open, and this circumstance accounts in part for the impression he wishes to convey.

When improvements are recommended in working conditions -- such as lighting, rest rooms, eating facilities, air-conditioning -- do you try to set a measure of their effectiveness on productivity??

When sufficiently accurate and complete measurements are available, it will be possible to set limits on the thermal and electrical characteristics of the surface and subsurface materials of the moon.

When some thirteen records of newly and recently born individuals are collated, little or no correlation between length and distribution can be detected.

When three dice are tossed repeatedly, what is the probability that the number of aces is 0 ( or 1, or 2, or 3 )??