In passing through the Tropics one of the most glorious sights is the phosphorescence in the sea.
If you pass through the embowered ways of this district after nightfall, your path will be lighted by glow-worms and fireflies, just as phosphorescence illumines the darkness upon the waters traversed by a ship's hull.
The molten silver on which we idly floated had just ripple sufficient to double its reflective power, lit by an occasional flash of phosphorescence when the oars were dipped.
The wonderful shadow pictures produced on the phosphorescence screen, or the photographic plate, would seem to come from some peculiar form of light, but the exact nature of these rays is still an open question.
He held that the heat and phosphorescence produced in a low-pressure tube were caused by streams of particles, projected from the cathode with great velocity, striking the sides of the glass tube.
The peculiar ray's, now known as the cathode rays, not only cast a shadow, but are deflected by a magnet, so that the position of the phosphorescence on the sides of the tube may be altered by the proximity of a powerful magnet.
It consists essentially of an induction coil attached either to cells or a street-current plug for generating the electricity, a focus tube, and a phosphorescence screen.
Hertz, however, discovered that a small amount of phosphorescence occurred on the glass even when such opaque substances as gold-leaf or aluminium foil were interposed between the cathode and the sides of the tube.
The composition of the glass seemed to enter into this phosphorescence also, for while lead glass produced blue phosphorescence, soda glass produced a yellowish green.
Before long, occasional flashes of light, being the phosphorescence churned up by the tails of a pod of mackerel, could be seen from the deck.
The phosphorescence of these traces, or luminous bands, lasted seven or eight seconds.
I do not hesitate to speak on a subject of which voyagers discourse as frequently as of dolphins, sharks, sea-sickness, and the phosphorescence of the ocean.
Sometimes, in galvanising the medusa, the phosphorescence appears at the moment that the chain closes, though the exciters are not in immediate contact with the organs of the animal.
The phosphorescence of the ocean seemed to augment the mass of light diffused through the air.
If we rub wood with the body of a medusa, and the part rubbed ceases shining, the phosphorescence returns if we pass a dry hand over the wood.
These facts, to which several others may be added, tend to explain the causes of the phosphorescence of the sea, and of that peculiar influence which the shock of the waves exercises on the production of light.
Over the tablet of limpid violet phosphorescence still hovered the planes of the Keeper; and still was the oval of the Emperor black against the radiance.
From them a shaft of pale-blue phosphorescence pierced the murk.
Crookes has invented a curious little apparatus, the spinthariscope, which enables us to examine the phosphorescence of the blende excited by these rays.
Phosphorescence and fluorescence seem especially to result from the alpha and beta rays, particularly from the alpha rays, to which belongs the most important part of the total energy of the radiation.
The gigantic slab before me glowed with them, silver wavelets of phosphorescence pulsed over its surface and then--it turned as though on a pivot, sighing softly as it moved!
Little glints of phosphorescence shone out within the metallic green of the outer iris ring.
Their enormous saucer eyes were irised by wide bands of green-flecked red, in which the phosphorescence flickered.
Through the water tiny gleams ofphosphorescence began to dart, sparkles and coruscations of pale incandescence.
The brighter stars shone out dimly through a hazy sky; gleams of phosphorescence tipped the crests of the waves and sparkled with an almost angry brilliance as the bow of the Suwarna tossed them aside.
At night the phosphorescence of these lonely waters lying just north of the Antarctic Circle, between Tasmania and New Zealand, is indeed marvellous.
Phosphorescence of the sea unknown to the ancients, 114.
When the body is in a state of perfect health, this phosphorescence of the eye shows itself on many occasions.
In a state of indisposition, the phosphorescence of the retina appears in new and more alarming forms.
Another feature of meteorological phosphorescence is that of luminous appearances at sea, quite distinct from the luminosity of the ocean itself as produced by marine animalcula.
No example of phosphorescence among sea-weed has been known, but the delicate little moss Schistostega osmundacea is luminous.
Several simple and amusing experiments may be made to show the {773} phosphorescence of minerals.
The phosphorescence was not unlike the ineffectual fire of the glowworm.
This portion of the science of phosphorescence is involved in the same mystery as the previously described branches; theories are suggested; but no real satisfactory explanation is found for the different kinds of luminosity.
Kane of an extraordinary case of phosphorescence on the human body which occurred in the polar regions.
The boy moved round and stood close to his side so that he found himself placed between them, all three leaning forward over the rails watching the phosphorescence of the foam-streaked Mediterranean.
They heard its multitudinous rush of voices as the surge below raced by--a giant frieze in which the phosphorescence painted dancing forms and palely luminous faces.
Sea water had a phosphorescence sometimes for the same reason.
Indeed, in an exhausted vessel the phosphorescence is, as a rule, primarily excited by the powerful beating of the electrode stream of atoms against the phosphorescent body.
Just as molecules or atoms beating upon a solid body excite phosphorescence in the same or render it incandescent, so when colliding among themselves they produce similar phenomena.
Intense phosphorescence may be excited in a bulb by merely connecting it to a plate within the field, and the plate need not be any larger than an ordinary lamp shade.
The most important fact arrived at in pursuing investigations in this direction is, that in all cases it is necessary, in order to excite phosphorescencewith a minimum amount of energy, to observe certain conditions.
In another experiment, when phosphorescence was excited, a similar bulb was used.
The degree of exhaustion is just such that with the potential the coil is capable of giving, phosphorescence of the glass is produced, but disappears as soon as the vacuum is impaired.
A disruptive discharge coil, when the potential is pushed very far, excites phosphorescence and projects shadows, at comparatively low degrees of exhaustion.
Now," said Morris, with a sigh, "we have the phosphorescenceto ourselves.
A person naturally would think that, and yet, strange as it may appear, if there ever was a time when two is company and three is a crowd, it is when looking at the phosphorescence that follows the wake of an ocean steamer.
At night the phosphorescence was startling, breaking suddenly out along the crests of the waves formed by the port and starboard bows.
The phosphorescence did not cease at the creature's tail, but was carried many porpoise-lengths behind it.
I had previously noticed the phosphorescence of the water, but tonight it was stronger than usual, especially among the foam at the bows.
The tunnel was illumined by a dimphosphorescence from the rocks.
There was a sheen on everything, a soft, glowing sheen of phosphorescence from the rocks rising to meet the pale wan starlight.
The cause of the phosphorescenceis still a mystery.
Beyerinck's view that it occurs at the moment peptones are worked up into the protoplasm cannot be regarded as proved, and the same must be said of the suggestion that the phosphorescence is due to the oxidation of phosphoretted hydrogen.
The unusual brightness of the luminous fountain was due, doubtless, partly to the darkness and partly to the fact that a heavy scum of phosphorescence had accumulated in the lower cavern.
Now came the sound of water flowing, and, as he angrily caught his gun and turned toward the sluice, the letters shone again in phosphorescence on the tree.
He oared his way therefore in silence through the midst of the darkness, keeping his place in the centre of the tunnel by instinct, and perhaps also a little by the faint glimmer of phosphorescence which pursued him through the cave.
The uneasy water pavement of the cavern swayed beneath him with measured undulations, glimmering with that pale phosphorescence which is the deceiving ghost of true illumination.
Then without further speech between them, the four men swam past him and disappeared, faint wreathings and smears of phosphorescence trailing after them out of the gloom into which they had vanished.
To my consternation I then saw that it was a crocodile about the same length, "over all," as the canoe, the phosphorescence of the water causing his scaly carcass to gleam like a watery moon and distinctly revealing his every movement.
The mysterious property of phosphorescence is possessed by this fungus.
As heat is known to develop in masses of the fungus it is of interest to know whether it is from the phosphorescence or a ferment.
The little animal which is responsible for the phosphorescenceof sea water is strangely reminiscent of an apple with its stalk.
Very frequently in the summer, when the seas are warm any agitation of the water causes a beautiful phosphorescence to appear.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "phosphorescence" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: fluorescence; glow; illumination; light; luminescence; phosphor; phosphorescence; radiance; wisp
