  HYDROSTATICKS. A TABLE of the Specifick Gravities of several Solid and Fluid Bodies. To be perform'd by Francis Hauksbee; and the Explanatory Lectures read by William Whiston, M. A. MECHANICKS.1st Day. Sir Isaac Newton's Three Laws of Motion, or Nature, demonstrated by Experiments. That the Velocity of Falling Bodies is as the Times of Falling, and the Lines of Descent in the Duplicate Proportion of those Times. An Instrument to measure the Force of Falling Bodies. Experiments concerning the Sliding, Rolling, and Falling of Bodies. That Bodies will ascend as high, as whence they fall by the last Velocity impress'd, when all Obstacles are removed. That Bodies by a compound Force move in a Diagonal Line. 2d—The Balance and Stilyard, with all their Properties and Uses shewn and explain'd. The Method of estimating the Momentum, or Quantity of Motion in any given Body. The general Principle of Mechanicks established upon this Method. Experiments to demonstrate the different Effects of the same Weight of Power acting in different Directions at the same Point of any Engine. The Resolution of Forces into those of other Directions. All the various Kinds of Levers explain'd. 3d—All the PhÆnomena of Pulleys, both single and in all their possible Combinations explain'd. The Power of the Wheel or Axis in Peritrochio explain'd. The Wedge, with the Method of comparing its Force, deduced from Experiments. The Screw, with the manner of computing its Force. A Compound Engine. 4th—An Experiment of Lifting a Weight by a Chain of Inflated Bladders, with its Application to Muscular Motion. GalilÆo's Demonstration concerning the Strength of the Bones, Timber, &c. reduced to Experiment. The Method of computing the Force of the Air on the Sails of Windmills, and of Ships; and of Water on Water-Wheels, and on the Rudder of a Ship. Experiments to shew the proportional Advantages of large and small Wheels, in all Sorts of Carriages, as Couches, Waggons, Carts, &c. 5th—An Experiment to shew, that the lateral Motion compounded with the perpendicular Projection, does not alter the Line of Ascent or Descent in the projected Body. The most considerable Objections against the Motion of the Earth, answered from this Experiment. That the Line described by a Projectile is a Parabola. The Experiments upon which the Art of Gunnery does depend, most exactly perform'd. 6th—Experiments concerning Pendulums. The Description and chief Properties of the Cycloid, and the Application of Cycloidal Cheeks for regulating the Vibrations of Pendulums. An Experiment to shew the Analogy between the Swings of a Pendulum and the Waves of the Sea. Experiments concerning the Expansion of Metals by Heat. 7th—The Laws of Motion in the Collision of Hard and Elastick Bodies. Experiments concerning the Centrifugal and Centripetal Forces of Solid and Fluid Bodies in Motion. Experiments in order to estimate the Centrifugal Forces of Solid Bodies. MAGNETICKS.8th Day. Attractive and Directive Powers of Loadstones. The Form or Position of Filings of Iron at the Poles and Equator of a Loadstone. Magnetick Power acts thro' all Bodies but Iron. The Attraction of different, and Repulse of corresponding Poles. The manner of touching and untouching of Needles. The Law of Magnetick Attraction discover'd. 9th—The PhÆnomena of Terrella, or Spherical Loadstones. The Direction of Magnetick Needles on the Surfaces of Terrella nearly towards the Poles. Their Variation East and West. The Inclinatory or Dipping-Needle, with the Law of the Alteration of that Inclination on the Surface of a Terrella. The Terrestrial Magnetism consider'd. The Application of the Dipping-Needle to the Discovery of the Longitude and Latitude of Places by Land and Sea. OPTICKS.10th Day. Experiments to demonstrate, that in the Rays of Light the Angle of Incidence is equal to the Angle of Reflection in all Sorts of Surfaces. The Method of tracing the reflected Rays of Light from Plain, Convex, Concave, and Cylindrical Superficies, with all their wonderful Properties and Uses, shew'd and explain'd. 11th—Sir Is. Newton's Reflecting Telescope exhibited, and its Construction explained; together with some Specimens of its Uses in observing the Planets and Fixed Stars. 12th—Experiments to shew the Manner of Refraction. The Sines of the Angles of Incidence and Refraction, shewn to be (at all Degrees of Incidence) in a constant Proportion to each other. An Instrument to measure the Refraction of Fluids. The Method of tracing the Refracted Rays of Light thro' Plain, Convex, and Concave Superficies. 13th—An artificial Eye, in which all the Coats and Humours are curiously represented. The Dissection of the Eye. The Explication of Vision by the naked Eye, deduced from Experiments. 14th—All the Effects, Properties, and Uses of Plain, Convex, and Concave Glasses, both single and combin'd in Telescopes and Microscopes, shew'd and explain'd. Several Kinds of Microscopes and Telescopes, with the Manner of applying them to their respective Objects; together with a Specimen of the Uses of such Microscopes and Telescopes. A Multiplying Glass. The Magick Lanthorn. 15th—A particular Apparatus to manifest and measure the Refraction of Air. The Camera Obscura. The Theory of Light and Colours, as delivered by Sir Isaac Newton, demonstrated by several of his principal Experiments. The Archbishop of Spalato's Experiment, which discovered the Cause of the Rainbow. Monsieur Hugen's Experiments, which discover the Causes of Halo's, of the Mock Suns and Moons, and of inverted Rainbows. Experiments concerning the blending and Production of Colours by Motion. HYDROSTATICKS.16th Day. That Fluids gravitate in proprio loco, the upper Parts continually pressing upon the lower: That this Pressure is not only propagated Downwards, but even Upwards, and Sideways, according to all possible Directions; That a lighter Fluid may gravitate upon a heavier, and an heavier upon a lighter; That a Fluid may sustain a Body heavier in Specie than it self, and even raise it up; That a Fluid may detain a Body lighter in Specie than it self, and even depress it. A general Experiment to prove, that a competent Pressure of a Fluid may produce the remarkable PhÆnomena of the Torricellian Tube, the Pump, Syringe, Syphon, polished Plates, and other Effects of the like Nature. 17th—That Fluids press according to their perpendicular Altitudes, whatever be their Quantities, or however the containing Vessels be figured. The exact Estimate of all manner of Pressures. That the Velocity and Quantity of Fluids running out at a given Hole, is in the subduplicate Proportion of their perpendicular Altitudes. Several Sorts of Pumps. Of the sinking and floating of Bodies immers'd in Fluids; their relative Gravities and Levities; their Situations and Positions. The PhÆnomena of Glass Bubbles and Images accounted for. 18th—An Instrument to find out the Specifick Gravity of all Liquors. The Hydrostatical Balance explain'd, with the Methods of determining the Specifick Gravities of all Sorts of Bodies, whether Solid or Fluid, thereby. The Praxis of the Hydrostatical Balance, whereby the Specifick Gravities of several particular Bodies are actually found out. Some Account of the various Uses of such Enquiries. PNEUMATICKS illustrated by Experiments for the most part Tubular, being such as were wont to be made before the Air-Pump was invented.19th Day. The several PhÆnomena of the Torricellian Experiment exhibited and explained. Other Experiments of the like Nature, with Fluids variously combin'd. Several Sorts of Barometers, Thermometers, and Hygroscopes. The Pressure of the Air shewn by Experiment to be different at different Altitudes from the Surface of the Earth. 20th—The Density and Spring of the Air proved by several ways to be as the Force which compresses it, and reciprocally as the Spaces into which it is compress'd. From hence an Enquiry is made into the Limits and State of the Atmosphere. 21st—The Effects of the Weight and Spring of the Air in Syringes, Pumps, Siphons, polished Plates, Cupping-Glasses, Suction: Respiration explained by artificial Lungs; That the Air may be so disorder'd by a violent Impulse, as to require Time to recover its Strength and Elasticity again. The more known Properties of the Air established by the Air-Pump, and other Engines.22d Day. The Air-Pump; the Instruments for Condensing and Transferring of Air; their Fabrick, Operation, and Gages explained. 23d—A Parcel of Air weighed in the Balance; its Specifick Gravity to that of Water determined thereby; an artificial Storm, shewing that high Winds may make the Barometer sink much and suddenly. 24th—The Weight, Pressure, and Spring of the Air prov'd several ways; by the Sense of Feeling; by breaking Glass Vials; the PhÆnomena of Bladders, Glass-bubbles, Fountains; the Gardiner's Watering-Pot; the Diving-Bell, &c. 25th—The Torricellian Tube in Vacuo; Quicksilver raised to the usual Height of the Weather-Glass, by the bare Spring of a little included Air; Otto Gerick's Hemispheres; and that dense Air has the same Advantage over common Air, as that has over a Vacuum. The Ebullition of Liquors in Vacuo; the Quantity of Air contain'd in them; the Sustentation of Fumes and Vapours; the Descent of Bodies in Vacuo. The more hidden Properties of the Air consider'd by the help of the like Engines.26th Day. The Influence of the Air examin'd as to the Causes of Magnetism; the Elasticity of Springs; the CohÆsion of the Parts of Matter; the Sphericity of the Drops of Fluids; the Ascent of Liquors in capillary Tubes, and between Glass-Planes in the Curve of the Hyperbola, both by the Attractive and Repulsive Power of the Glass. 27th—The Influence of the Air, as to Sounds, Fire, and Flame; the Consumption of Fuel; the firing of Gunpowder; the Effects of rarified, condensed, and burnt Air upon the Life of Animals. 28th—A Piece of Phosphorus in Vacuo; new Experiments concerning the Mercurial Phosphori; Experiments concerning the Electricity of Bodies. Every SUBSCRIBER is to pay Three Guineas; One Guinea at the Time of Subscription, and the Remainder, the First Day of the Course. SUBSCRIPTIONS are taken in at Mr. Whiston's, in Great Russel-Street; and at Mr. Hauksbee's, in Crane-Court in Fleetstreet; where the Course is to be perform'd. |
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