Evening Star Newspaper, December 21, 1930, Page 13

GRAVITY CONSTANT | IS REDETERMINED : New Measure Has Precision of Two Parts in 1,000,000. value of the constant of gravita- , perhaps the most fundamental fig+ in creation, has just been redeter- ed with a precision of approximate- two parts in a million at the Bu- u of Standards here. Dr. Paul D. Heyl has just announced in the last issue of the Bureau's Jour- nal of Research the results of his Mmeasurements with a tortion balance conducted in an underground chamber. His value is 6.670 multiplied by one «one-hundred-millionth. This carries now given as the standard, which been accepted for 30 years. ‘The extreme importance of this con- stant in delicate physical measurements. 1t is explained by the bureau, justifies the determination of tion of this extremely minute figure. co! to the law of gravity, it is ex- plained, every mass in the universe at- tracts other mass with a force roportional to the uct of the two masses divided by square of their distance apart, the product being multi- gl.l:d by the elusive G, whose value has n redetermined. The last figure was considered entirely correct only to two parts in a thousand. Matter of Speculation. Just what G represents still is & mat- ter of speculation, but, says Dr. Heyl, “this constant of nature is one of the few that best deserve the name. It is known to be independent of the nature of the attracting materials to a pre- cision of six parts in ten. It is known to be independent of the temperature to & precision of about one part in 10,000, and it appears to be unaffected by the presence of different materials in the space between the attracting bodies. In eoretical importance it ranks with the velocity of light. “In Einstein's theory of gravitation it appears in the formula for the curva- ture of space due to the density of the distribution of matter. Practically this constant is of importance because it enables us to determine the mean density of the sun and of the other planets of the solar system. It undoubt- edly has some intimate connection, not yet understood, with the ultimate struc- ture of the universe.” Physicists and astronomers, ‘Dr. Heyl R. HARRIS & COMPANY THE. SUNDAY its_out, have made the assump- that this constant of attraction, determined between two bodies -on the earth’s surface, also remains 8 constant over such a vast extent of space as stretches between the earth and the sun. Little Practical Importance. “The arbitrary nature of this as- sumption,” he says, ‘“becomes clear when, following Einstein, we regard gravitation as due to space curvature the presence of matter. ‘We are, in fact, assuming space every- ‘where to be equally resistant to defor- mation. We do know that the constant of gravitation is approximately ‘the same at several points on the earth's surface, but- we not know that ‘the same will hold true for different radii, as between the earth and the moon, or even between the center and the sur- face of the earth. “But if we are wrong in this as- sumption it is of little practical im- portance. Our estimates of the masses of the heavenly bodies might be in error, yet their mutual attraction and relative motions would still be the same. However, in the case of a body moving in a very long elliptical orbit, such as a periodic comet, there might be a small differential perturbation from this cause. “We are not entirely without evi- dence that our estimate of the mass of the sun, at least, is not grossly er- roneous. The Einstein shift of the lines of the solar spectrum depends on the RECORD MAYFLOWER LINEAGE IS CLAIMED Col. F. A. Pope of Washington Pos- sesses 53 Lines of Direct Descent. The anniversary of the Ianding of the Pilgrim Fathers, December 20, 1620, which was celebrated in Washington yesterday, called attention to one local resident who has perhaps: the largest number of forbears who came over on the Mayflower, Col. Francis Amory Pope, U. S. A., who resides at the Mayflower Hotal, was revealed by his friends as possessing 53 lines of direct Mayflower descent. If there are any others claiming more Iines, they are unaware of it. Col. Pope’s lineage includes this amazing record: Direct descendant in the ninth gen- eration from Capt. Myles Standish in two ancestral lines; ninth from John Alden and his wife, Priscilla Mullins, in three lines: Alice Mullins, three lines; ninth from —_———————— solar mass. It is safe to say that our estimate of the mass. of the sun is not in error by as much as 20 per cent.” F STREET - AT - ELEVENTH DIAMOND BRACELETS tenth from Willlam and |f§ STAR, WASHINGTON, D. C, DECEMBER 21 Isaae Allerton and his wife, Mary, four lines; eighth from their daughter, Mary Allerton, four lines; ninth from Francis' Cooke, one line; ninth from Francis Eaton,,one line; ninth from Stephan Hopkins and his wife, Eliza- beth, three Iines; ninth from John Howland and his wife, Elizabeth Tilley, one line; tenth from Howland and wife, one line; tenth from John Tulley and his wife, one line; eleventh from John Tilley and wife, one line; tenth from Degory Priest, two lines; tenth from Thomas Rogers, two lines; ninth from Henry Samson, one line; ninth from George Soule, two lines; ninth from Richard Warren, two lines. He is also directly descended from Robert Cushman, who made arrangements in England for the trip of the Mayflower. Britain's most powerful electric ma- chine has just been installed at the super-power station at Bristol, England, it being rated at the equivalent of 67,000 horsepower and weighs 140 tons. 1930—PART ONE. THREE ARRESTED FOR CUTTING CHRISTMAS TREES IN MARYLAND .| Washington Men Charged With Taking Greens Without Written Consent of Owners. By a Staff Correspondent of The Star. HYATTSVILLE, Md., December 20.— Having repeatedly warned that Christ- mas greens cannot be cut in Maryland without the written consent of the owner, Prince Georges County policé made the first arrests of the year for this offense when they -took Washington men into custody in woods bordering on the Defense Highway. Those arrested were George Long of Trinidad avenue northeast, Martin - to three | Andrew F. Gasch and Forest Warden ter of Mount Olivet road northeast and George Johnson, colored, of Sixth street northeast. All were arraigned before Justice of Peace H. J. Moffat and required to post $100 bond for their appearance in Po- lice Court. The arrests were made by Constable Dan Wiseman, who reported the meh were hauling Christmas trees away in trucks. Each of the three men claimed have the consent of the property ‘The men 179 of the requires greens to them State. are acts of 1918, 'mbr cutting ave permission to but also the owner’s consent from his property and Sorry Husband Took Radio. ST. LOUIS (N.AN.A).—Mrs, Mary Ellis told police she did not mind her husband deserting - her woman, but “he took our radio away with him.” (Copyright, 1930, by North American News- paper Alliance.) You can feel very secure—making your selections for him among our assortments—for he knows Mode correctly interprets fashion— with quality. And for you—interestingly low prices. Lounging Robes $5 to $90 Exclusive in House Coats %675 to %35 The Magnificent Gift Flannel, brocade and silk, from. Welsh-Margetson of London and contempo- raneous makes— An immense variety of capably tailored House Coats, in double-faced cloth; bro- cade, silk, etc. Patterns ex- clusive with us. Two Very Special Lots Double-faced Cloth Coats, strictly. new design; comfortable cut and 5675 wel] made. ... at Special Prices Two Very Special Lots Genuine all-wool Flannel Robes, in stripes and plain dou- ble-breasted effects— 59.75 also a real value....... _Handsome brocade effects; lined throughout with Skinner's silk — beautiful §1 675 Marquise Diamond Ring A caratsize mar- quise diamond. per- fect and of the finest eolor. In platinum mounting. SPECIAL $485 Lifesize sketches drawn from the actual pieces at R. Harris and Cosr-ny. Each creation is specially priced. g Brocade and Double - faced Cloth Coats, effectively trim- med; choice of col- §7 ().75 ors Beantiful . baguette watch with mara; round diamonds. As Pajamas and Lounge . Suits The Pajama Lounge S Suit has a special ap- peal because . of its dual service—and we have a very attractive showing of the Rus- sian Lounge—in plain and fancy effects— especially silks, New arrivals in special makes, in exclusive patterns and shapes, from Welsh- Margetson and America's best makers—$1 to $6. Special— Welsh-Margetson $2_7s English Four-in-hands, Ranging: From $3.50 to $10 Other models of Pajamas — including silk—from $1.65 to $25, Imported silks in very choice patterns, hand-tailored $1 85 combination and silk lined........... :Inll of Mode Shirts Special weaves —neckband, col- lar attached and separate collar styles. | ‘1,850 | with exquisite design baguette and Specials Glenbrook beoad- - cloths; non-shrink- - Handkerchiefs Importations from Welsh-Margetson, of London, and other noted makers—50c to $4.50. Three Specials— Imported French Linen, hand-rolled and seli- blocked. Very exceptional value................ < ;:ll: rou hown. Dundee . Poplins, A very exceptional weave ; plain colors ; collar 'at- $1 .95 tached.... 35¢c 3 for 81 50c 6 for $2.75 Imported Irish Linen, wide solid color border; white center, initial embroidered in colors to match, Very 75 SPeCial surusrcarieriiaeienrenais C Genuine Daffodil radium silk; white and solid colors. Separate $5.75 Imported Linen—plain white with white in- itial, or tvhite initial embroidered on colored back- ground. Each.....i.....oiiciiivansimesatoncen... collars to A cleverly designed bracelet beauty. Three match... Mark Cross Gloves The world’s recognized best Glove and sold exclusively here in Washington, Therels a Mark Cross Glove for every occasion and every hand. Beginning at $3.50— with a special fur-lined cape or mocha at $6.75. Special— British-made Pigskin Gloves—genuine skins; the smart glove of the 35} $€aSON....00.0e Popular Hosiery From Allen Solley, Scotland, and the best Frerich and American makes—silk, silk and wool mixtures, French lisles, ete, 75c to $5. A very dainty ere: tainine 116 round mounted to a_brl tect. As shown. Square-Cut Diamond Ring An exquisite _dia- mond of 2 and 2/100 carats weight, of magnificent color, slightly imperfect. SPECIAL $750—— Specials . An unusual value in silk and wool —in all the wanted colors Every dismond has been se- lected with the utmost care. Each is of finest quality and beautifully mounted. - R.Harris & Co. F Street at Eleventh Others to $5,000 Mode Special Tuxedo Correct in every detail of fashion and fit. $3 6.75 The Mode—F at Eleventh d‘ / - Jewelers and Diamond Merchants for Over Half a Century ¢ m