Winnipeg Free Press

Winnipeg Free Press (Newspaper) - June 21, 1987, Winnipeg, Manitoba 18 Winnipeg face june 9cigi1cg seismic computers enable scientists to map the shape and composition of the planets molten scientists probe molten Ocean by Walter Sullivan times news service new York beneath the within the heart of the lies a Long unexplored Ocean of molten Iron whose currents and undulating upper Boundary Are Only just begin Ning to be discovered through a new Arsenal of scientific As with the oceans of water and air above the earths the internal one is governed by heat driven currents deflected by the earths but the internal currents Are partly be cause while the external oceans form thin layers Over the earths the internal one is Kilometres because the earths solid inner Core forms the floor of that Ocean and the oceans upper surface is an irregular the flow patterns Are unlike those of the oceans of water and which have much in and the currents move at rates reckoned in Kilometres per rather than Kilometres per until recently the Core seemed beyond the reach of but within the last year a new picture of the deepest Region of the earths Flea habitat thriving Chicago Tribune a housing project for com plete with a Roundt Hemlock open has been set up at Cornell University in what scientists de scribe As the first successful Flea habitat away from a cat or other furry it Are rather and they decline to live anyplace that Doest offer 24hour dining on fresh at the Cornell the fleas also enjoy Freedom from the dangers and disruptions caused by dogs biting or the tiny creatures Are Able to follow their nutritional and romantic interests in total even luxury by their going to so much trouble to make fleas Happy and healthy might seem a bit conceded Susan a Cornell be cause when most people think of fleas at they just want to kill but she and her colleagues Arent motivated by a fondness for Wade they built the new habitat because it offers a Means of studying the ubiquitous Little pests much More precisely than was previously she veterinary researchers gather and study saliva from fleas and even perform autopsies on them to learn about the diseases they spread to Host future research May also seek to discover Why some people seem to be allergic to in the fleas in research projects were kept on living dogs or it was quite Wade you could put 50 fleas onto a but youd never be Able to retrieve All 50 for study you just find them All in the with our system if you put 50 adults into the you can get 50 out again when you want the new system also allows re searchers to manipulate several aspects of the Flea environment to study their individual effects on the the has begun to according to Adam Dziewonski and John Woodhouse of Harvard writing in the journal new seismic increasingly sensitive and computers capable of digesting thou Sands of observations have made it possible for scientists to look through the earths kilo metres of Rock Mantle to the liquid Core and its solid mapping their irregular shape and diverse using magnetic observations made on the earths surface since two Earth Jeremy Bloxham of Harvard and David Gubbins of Cambridge University in have been Able to map magnetism generated on the outer Core surface by its internal they deduced that fluid motions in the Core Are partially controlled by at centimetres per in the solid Mantle and vice no evidence they have found no evidence of change in recent centuries in the More deep seated they deduce that the planets magnetism is generated chiefly by several spi banana shaped circulation patterns skirting the inner Core and parallel to its spin the molten Iron is heated near the inner rises toward the cools by transferring heat to the Mantle and descends the magnetism is generated by this flow much As a Dynamo generates areas of intense for have remained fixed under Siberia and where relatively Cool Core material is spiralling in each Case the Overly ing Mantle also is relatively implying a Thermal Matching downward spirals occur in the Southern the two scientists believe a Simi Lar Dow flow also should lie under masked by the effects of fluid flowing near the Core this near surface flow would explain the Westward Drift of the magnetic Field observed chiefly Over the hemisphere occupied by the Atlantic because of this North As shown by a Compass changes each hottest elsewhere in the according to this the hottest molten Iron rises under areas where the Mantle is while the heat flow is primarily from Core to Man according to the Man the also delivers heat to parts of the circulation in both the Core and Mantle is analogous to that of fluid in a pot on a although motions in the Mantle Are extremely material heated at the Bottom of the pot rises to the and sinks Down the sides to be heated mapping the Boundary Region be tween the liquid Core and the solid Mantle that surrounds it has revealed a Complex zone subdivided into what Thomas a pro Fessor of Earth sciences at has likened to which Are sometimes thought of As accumulated froth atop the denser we might Jordan has a solid slag on the cores liquid Iron because of circulation in the underlying he Mountain ranges could be piled up and huge rafts pushed about in a manner not totally strange to the surface student uncovers newtons error w photo Chicago a physics Stu Dent Robert Garisto didst move heaven and but he did find an error in sir Isaac newtons Principia that had gone undetected since the master Laid out the Laws of motion and his theory of Gravity 300 years what goes up will still come its great that i found but it certainly Doest change history View of Newton or said a 23yearold University of Chicago used own data what i found is that using his own plugged the wrong value into a calculation and came up with a discrepancy of about 15 per he he simply was inconsistent in How he used his own numbers in an Equa the equation appears in proposition eight of Book three of the philosophize naturals Principia published in the work purported to explain How a unified system of scientific principles Gravity and motion governed what happened on Earth and in the inconsistency in proposition Newton tried to demonstrate the correctness of his explanation by calculating the surface Gravity and density of the known it is in the calculation of the mass of the Earth that Garisto found the Newton needed to know the Angle Between a line from the Centre of the Earth to the and a line from a Point on the earths surface to the Garisto found mistake in newtons calculations which had gone undetected for 300 modern science has put that num Ber at about a second is one of a newtons notes indicated he believed the figure to be Sec but he used 11 seconds in the equation to calculate the earths that is the error Garisto Garisto repeated those calculations As part of a class assign i found the my initial reaction was wow i did the calculations figuring in the 15percent change and i got what should have been the right he Garisto turned in the assignment in but the significance of the find eluded even professor Noel sword who gave Garisto an plus for his attended lecture in Swerdlow and Garisto attended a lecture on the Principia by University of Chicago Nobel laureate Chandrasekhar and of both realized what Garis to had Garisto wrote a More extensive submitted it to the scientific Honor society Sigma i and won the University chapters prize for excellence in Garisto will receive his Bache lors degree in physics recently and begins graduate work next fall at the University of where he plans to study theoretical higher Ergy physics and Albert einsteins theory of general asked whether he anticipates find ing problems with einsteins Garisto laughed and give me a Micro world Aldus and Xerox carry ism toward desktop publishing by Brian starfire Dallas morning news for some months Apple macintosh users have been Able to Point out a limitation of the ism pc and compatibles desk top which is becoming the personal computer rage this was the sole province of the because the Mac is built around a High powered Chip the 68000 and uses a graphics inter it is ideally suited for graph in intensive which require Good screen clarity lots of personal computing horse but software never ones to pass up an heard the wails of ism users wanted to get into desktop pub and As a re you can now jump into desk top publishing on the ism Side As Well As on the Mac in All this application still presents less Overall hassle on the macintosh if you have committed to a sizable in vestment in an ism you dont have to sell your com Puter to play Aldus Page one of the most popular program for desktop publishing on the is now available for the ism also available is Ventura pub Lisher by Xerox if dazzling documents Are what you you can get them from Ventura be that it will initially take some a desktop publishing program makes a word processor look like Childs play in terms of Complex i had an idea that things might get Complex when i opened the package and found 11 it took 15 minutes just to install the but once Ventura publisher was easy to get the program bears a Strong resemblance to the Macin with Pul Down menus and onscreen tools that you select with a the by the is required by this pro like Aldus Page Ven Tura publisher is a Page layout not a word the Way you build a document is to use your favorite word processor to create a then Load that file in Ventura and Lay out the pacemaker and Ventura desktop publishing with but its still More hassle than on the Mac you have Many controlling options that professional printers have you can place text into col insert drawings or other and use a variety of Type styles for headings and the programs documentation is but youll spend some time learning Ven because theres simply so much to the Art of desktop pub one major advantage of this program is that you dont necessarily need to go into Hock to afford hardware to run Ven Tura publisher does require a hard disk and a but unlike Many desktop publishing pro Grams for ism you do not need an a compatible or fast processor accessory card to use the after close desktop publishing on the ism my impression is that professional printing appearance from a personal com Puter is quite and if you want be prepared to spend a Good bit of and some getting what you user groups Here is a list of same computer user groups in d Adam users meets Contact Andre 1510 Alexander at d Manitoba Adam users meets every second time and location May Contact Eric Brennan at d atari St users meets at 7 the second thursday of each month in the recreation association Taylor Avenue at Harrow for users of the 520 St and 1040 Contact Len Stokes at or Call the stud bus at d atari users meets first thursday of each month in the Grant Par Harrow recreation 550 Harrow Contact Rick d Commodore users meets at 7 in the its room the first monday of the d Manitoba users group Commodore meets at 7 on the second thursday each month in Patricks 625 Spruce Contact John Sarvis at d Epson user meets at 7 on the last thursday of each month at the inf tech 1970 Ness d in pc and compatibles users group meets at on the third thursday of each month in the Black lecture red River Community Contact Ken Hudson at 4882129 evenings Lor membership d about macintosh a users meets at on the third tuesday of the month in room armes University of free parking available in lot Contact Zhiren Fonseca at d Muddy water user and Modos user meets at tuesday May 26 at 1970 Ness and meets at june 22 in theatre Basic sciences Emily Street at Bannatyne bus at enquiries to Vic Roberts at 14826259 g to users full to Call or write to National users group 759 6th r7a 3p3 d Winnipeg Apple users meets at on the first wednesday of each month in the Basic medical science 730 William with free parking in lot membership first family membership Contact Florence Tokar at or Tim Evans at d Winnipeg meets at on the second and fourth sundays of the month in room red River d Winnipeg microg80 users meets at 9 every second saturday in Tec voc High Lor users of radio computers and ism also operates a bulletin Contact Wayne Vickers at 6940816 after 6 u Winnipeg 994a users meets time and location May Call Paul Degner at or Call the 9900board bus u meets at the fourth thursday of each month at 1970 Ness Contact the group on Caber com or Call David Western unix Trade this list will be published new listings and updated information Are please Send to Micro world Vern Winnipeg free 300 Carlton r3c 3c1 rent it portables by week or month with rent applicable to Purchase we configure our equipment to your needs prompt n National typewriter i office equipment 272 main Street 9422141 my Tempo the Best in modern consumer news and Winnipeg free press Home delivery 9570550 i ;