A Quote by Isaac Newton
Do not great Bodies conserve their heat the longest, their parts heating one another, and may not great dense and fix'd Bodies, when heated beyond a certain degree, emit Light so copiously, as by the Emission and Re-action of its Light, and the Reflexions and Refractions of its Rays within its Pores to grow still hotter, till it comes to a certain period of heat, such as is that of the Sun?
Related Quotes
Do not Bodies and Light act mutually upon one another; that is to say, Bodies upon Light in emitting, reflecting, refracting and inflecting it, and Light upon Bodies for heating them, and putting their parts into a vibrating motion wherein heat consists?
Doth not this Æthereal Medium in passing out of Water, Glass, Crystal, and other compact and dense Bodies into empty Spaces, grow denser and denser by degrees, and by that means refract the Rays of Light not in a point, but by bending them gradually in curve Lines? And doth not the gradual condensation of this Medium extend to some distance from the Bodies, and thereby cause the Inflexions of the Rays of Light, which pass by the edges of dense Bodies, at some distance from the Bodies?
Are not gross bodies and light convertible into one another; and may not bodies receive much of their activity from the particles of light which enter into their composition? The changing of bodies into light, and light into bodies, is very conformable to the course of Nature, which seems delighted with transmutations.
Qu. 31. Have not the small Particles of Bodies certain Powers, Virtues or Forces, by which they act at a distance, not only upon the Rays of Light for reflecting, refracting and reflecting them, but also upon one another for producing a great part of the Phænomena of Nature?
Nothing which consists of corporeal matter is absolutely light, but that is comparatively lighter which is rarer, either by its own nature, or by accidental heat. And it is not to be thought that light bodies are escaping to the surface of the universe while they are carried upwards, or that they are not attracted by the earth. They are attracted, but in a less degree, and so are driven outwards by the heavy bodies; which being done, they stop, and are kept by the earth in their own place.
We know there is a sun in heaven, yet we cannot see what matter it is made of, but perceive it only by the beams, light and heat. Election is a sun, the eyes of eagles cannot see it, yet we may find it in the heat of vocation, in the light of illumination, in the beams of good works.
Physical heat sometimes accompanies the filling of the Spirit and people experience it in their hands or some other part of their bodies. One person described a feeling of 'glowing all over'. Another said she experienced 'liquid heat'. Still another described 'burning in my arms when I was not hot'.
Oh leave the Wise our measures to collate. One thing at least is certain, light has weight. One thing is certain and the rest debate. Light rays, when near the Sun, do not go straight.
Certein bodies... become luminous when heated. Their luminosity disappears after some time, but the capacity of becoming luminous afresh through heat is restored to them by the action of a spark, and also by the action of radium.
But we must also look at renewable heat technology. More combined heat and power schemes, putting waste heat to better use. More district heating schemes. And more electric air and ground-source heat pumps, drawing warmth from the outside world to heat the indoors. Better insulation, smarter homes, and more efficient heating can help us cut our energy demand.
Cooling bodies gravitate and heat as they gravitate-heating bodies radiate, and cool as they radiate.
Some months ago we discovered that certain light elements emit positrons under the action of alpha particles. Our latest experiments have shown a very striking fact: when an aluminium foil is irradiated on a polonium preparation [alpha ray emitter], the emission of positrons does not cease immediately when the active preparation is removed: the foil remains radioactive and the emission of radiation decays exponentially as for an ordinary radio-element. We observed the same phenomenon with boron and magnesium.
The candle flame is too hot. It flickers and dances in the over-warm breeze, a breeze that brings no respite from the heat. Soft gossamer wings flutter to and fro in the dark, sprinkling dusty scaled in the circle of light. I'm struggling to resist, but I'm drawn. And then it's to bright, and I am flying too close to the sun, dazzled by the light, fried and melting from the heat, weary in my endeavers to stay airborn. I am so warm. The heat... It's stiffling, overpowering. It wakes me.
Do not Bodies act upon Light at a distance, and by their action bend its Rays; and is not this action (caeteris paribus) [all else being equal] strongest at the least distance?
I am a leader, so leaders always get heat. They're always going against the grain. Jimi Hendrix got heat; Bob Marley got heat; Miles Davis got heat. Every great artist got heat. Heat means you're doing something right.
I am a leader. Leaders always get heat. They're always going against the grain. Jimi Hendrix got heat; Bob Marley got heat; Miles Davis got heat. Every great artist got heat. Heat means you're doing something right.
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