-
Articles/Ads
Article SCIENTIFIC INTELLIGENCE. ← Page 2 of 6 →
Note: This text has been automatically extracted via Optical Character Recognition (OCR) software.
Scientific Intelligence.
cause of its apparent motion being very rapid . It was small , appeared only like a faint white spot , and had no " tail . Zach , at Gotha , makes the number of the comets now known to be 90 . One of the most difficult labours of astronomy is what relates to the stars . Their immense number indeed is sufficient to deter any one from the task of numbering them ; for those which we see , and we are far from seeing them all , may be estimated at more than a hundred millions . Many of these , it is well knownhave
, peculiar motions , some of which are very considerable . If . is to them , however , that wa are obliged to refer all the motions of the sun , the planets , and the comets . It is of importance then to endeavour to determine the motions of the stars ; and this objeft has at . all times engaged thev attention ot astronomers . Maskelyne has determined with the utmost precision the position of 34 stars . Zach has accomplished the same . thing in - regard to 1200 . Lalande , with his nephew and niece , have undertakema .-laoour tar greater , to determine thc position of more than 40 , 000 stars , from , the arctic pole to the tropic of Capricorn . This sublime task . is already very much advanced , as the positions of 42 , 700 are alread y known .
NEW COMET . A remarkable comet or meteor was observed on the 10 th of September list , about 20 minutes before twelve o ' clock at ni ght , by Alexander Campbell , one of the Masters of the Free School at Alnwick , Northumberland ; and another person . It appeared in the South-west at a considerable altitude - at first-it was no . bigger , but much brighter than a common star , but presentl y expanded into the form and size of an apothecary ' s pestle . It wis then obscured cloud
by a , which was still illuminated behind ; when the cJoud was dispelled , it re-appeared with a direction south and north , with a small long streamer , cutting the pestle a little below the centre , and issuing away to the eastward . It was again obscured , and on its re-appearance , th ? streamer and the pestle had formed tlie figure of a hammer or a . cross ; presently aftii- the streamer , which made the shaft to the hammer , or stalk to ne crossassumed two horns at the extreme point" towards the east '
, , , re «» mulmg a fork . It was then a third time obscured , but when the cloud passed over , it was changed into the shape-of two half moons , back to back , havin ° - ¦ 1 short truck luminous stream between the two backs ; it then vanished totally troin their sight _ It is observable that every new app : arance became bno- ! , ter and brighter , till it became an exceedingly brilliant object , - al ) tiie otherlrars 1 . 1 comparison appearing only to be dim specks . The time of observation v . ' . s auuut five minutes .
PHYSIOLOGY . . SPALLANZASI Im-ing destroyed the eyes or" bats , and-set them af iib-rtv m an apartment observed that they could guide themselves from on .- ph . to another as before . They avoided every object that was presented to thern ¦ » nd even passed through rings which he placed before them , and tor this ' rsison he asks , ' May not these animals possess a sens ; : with which we are not : Whch SU ' thaE of s ] 2 ht i be
X" - "T '' - ' " , , may W ° » *« y ^ « n *» s ' -iincient . tor that purpose ? BOTANY . ilv the last accounts from the We . t-Indies , we are informed tint the-;<« ul fruit tree is in a very thriving state—The plants , which , when sen ; ¦ -.. e ive years ago were only iron , six inches to two feet high , are now . I ' lMaiji " . or 30 feet lugn , . and the circumference of the stem ? from 3 to
MEDICINE . -MANKIND have been long employed in attempting to discover means for -prolongation of We .-Yalli , after laying down princi ples well known V 0 L - *¦'• Mm
Note: This text has been automatically extracted via Optical Character Recognition (OCR) software.
Scientific Intelligence.
cause of its apparent motion being very rapid . It was small , appeared only like a faint white spot , and had no " tail . Zach , at Gotha , makes the number of the comets now known to be 90 . One of the most difficult labours of astronomy is what relates to the stars . Their immense number indeed is sufficient to deter any one from the task of numbering them ; for those which we see , and we are far from seeing them all , may be estimated at more than a hundred millions . Many of these , it is well knownhave
, peculiar motions , some of which are very considerable . If . is to them , however , that wa are obliged to refer all the motions of the sun , the planets , and the comets . It is of importance then to endeavour to determine the motions of the stars ; and this objeft has at . all times engaged thev attention ot astronomers . Maskelyne has determined with the utmost precision the position of 34 stars . Zach has accomplished the same . thing in - regard to 1200 . Lalande , with his nephew and niece , have undertakema .-laoour tar greater , to determine thc position of more than 40 , 000 stars , from , the arctic pole to the tropic of Capricorn . This sublime task . is already very much advanced , as the positions of 42 , 700 are alread y known .
NEW COMET . A remarkable comet or meteor was observed on the 10 th of September list , about 20 minutes before twelve o ' clock at ni ght , by Alexander Campbell , one of the Masters of the Free School at Alnwick , Northumberland ; and another person . It appeared in the South-west at a considerable altitude - at first-it was no . bigger , but much brighter than a common star , but presentl y expanded into the form and size of an apothecary ' s pestle . It wis then obscured cloud
by a , which was still illuminated behind ; when the cJoud was dispelled , it re-appeared with a direction south and north , with a small long streamer , cutting the pestle a little below the centre , and issuing away to the eastward . It was again obscured , and on its re-appearance , th ? streamer and the pestle had formed tlie figure of a hammer or a . cross ; presently aftii- the streamer , which made the shaft to the hammer , or stalk to ne crossassumed two horns at the extreme point" towards the east '
, , , re «» mulmg a fork . It was then a third time obscured , but when the cloud passed over , it was changed into the shape-of two half moons , back to back , havin ° - ¦ 1 short truck luminous stream between the two backs ; it then vanished totally troin their sight _ It is observable that every new app : arance became bno- ! , ter and brighter , till it became an exceedingly brilliant object , - al ) tiie otherlrars 1 . 1 comparison appearing only to be dim specks . The time of observation v . ' . s auuut five minutes .
PHYSIOLOGY . . SPALLANZASI Im-ing destroyed the eyes or" bats , and-set them af iib-rtv m an apartment observed that they could guide themselves from on .- ph . to another as before . They avoided every object that was presented to thern ¦ » nd even passed through rings which he placed before them , and tor this ' rsison he asks , ' May not these animals possess a sens ; : with which we are not : Whch SU ' thaE of s ] 2 ht i be
X" - "T '' - ' " , , may W ° » *« y ^ « n *» s ' -iincient . tor that purpose ? BOTANY . ilv the last accounts from the We . t-Indies , we are informed tint the-;<« ul fruit tree is in a very thriving state—The plants , which , when sen ; ¦ -.. e ive years ago were only iron , six inches to two feet high , are now . I ' lMaiji " . or 30 feet lugn , . and the circumference of the stem ? from 3 to
MEDICINE . -MANKIND have been long employed in attempting to discover means for -prolongation of We .-Yalli , after laying down princi ples well known V 0 L - *¦'• Mm