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Volumn 48, Issue 5, 2010, Pages 292-295

Einstein's tea leaves and pressure systems in the atmosphere

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EID: 85007048781     PISSN: 0031921X     EISSN: 19434928     Source Type: Journal    
DOI: 10.1119/1.3393055     Document Type: Article
Times cited : (11)

References (7)
  • 1
    • 85007102216 scopus 로고
    • The Cause of the Formation of Meanders in the Courses of Rivers and of the So-Called Baer's Law
    • in Die Naturwissenschaften 14 (1926). Another classic paper by James Thomson (Lord Kelvin's brother) presented at the British Association Meeting, Dublin in 1857 also used a tea leaves example to support his ideas on mid-latitude circulation. This lecture was posthumously published as
    • Albert Einstein, "The Cause of the Formation of Meanders in the Courses of Rivers and of the So-Called Baer's Law," in Die Naturwissenschaften 14 (1926). Another classic paper by James Thomson (Lord Kelvin's brother) presented at the British Association Meeting, Dublin in 1857 also used a tea leaves example to support his ideas on mid-latitude circulation. This lecture was posthumously published as J. Thomson, "Bakerian Lecture. On the grand currents of atmospheric circulation," Phil. Trans. R. Soc. A 183, 84-653 (1892).
    • (1892) Phil. Trans. , vol.183 , pp. 84-653
    • Einstein, A.1
  • 2
    • 85007123859 scopus 로고    scopus 로고
    • Evidence for this pressure difference can be seen by observing the tilt of the free surface of the fluid that rides up the side of the container, resulting in high pressure in the periphery, low pressure toward the center
    • Evidence for this pressure difference can be seen by observing the tilt of the free surface of the fluid that rides up the side of the container, resulting in high pressure in the periphery, low pressure toward the center.
  • 3
    • 85007105660 scopus 로고    scopus 로고
    • In the fixed reference frame, the sum of all external forces provides the centripetal and Coriolis acceleration, while in a rotating reference frame, the sum of external forces on the object are balanced by the centrifugal and the Coriolis force. See the James Bond cartoon at
    • In the fixed reference frame, the sum of all external forces provides the centripetal and Coriolis acceleration, while in a rotating reference frame, the sum of external forces on the object are balanced by the centrifugal and the Coriolis force. See the James Bond cartoon at xkcd.com/123/.
  • 4
    • 85007123856 scopus 로고    scopus 로고
    • Since vt = -Wr, then -2Wvt = 2W2r and so is always positive, corresponding to an inward acceleration
    • Since vt = -Wr, then -2Wvt = 2W2r and so is always positive, corresponding to an inward acceleration.
  • 5
    • 85007105657 scopus 로고    scopus 로고
    • Weather in a tank
    • website and project are at, Readers and students can generate their own maps (similar to Fig. 2) for any day by going to, clicking on the maps, and following subsequent directions
    • "Weather in a tank" website and project are at paoc.mit.edu/labguide/and paoc.mit.edu/labguide/ekman.html. Readers and students can generate their own maps (similar to Fig. 2) for any day by going to www.paoc.mit.edu/labguide/ekman_atmos.html, clicking on the maps, and following subsequent directions.
  • 7
    • 85007119752 scopus 로고    scopus 로고
    • The overwhelming influence of gravity in the vertical direction implies that the pressure variation is much larger in the vertical than it is in the horizontal
    • The overwhelming influence of gravity in the vertical direction implies that the pressure variation is much larger in the vertical than it is in the horizontal


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.