Table of Contents

LIPA Numer 5 Kwiecien; Druga Niedziela, 1995


LL        II      PPPPPP        AA
LL        II      PP  PP      AA  AA
LL        II      PPPPPP     AA    AA
LLLLL     II      PP         AAAAAAAA
LLLLL     II      PP         AA    AA

Lista Polskich Atmosferykow i Sympatykow

Lipa swiateczna

LIPA w hypertekscie: mosaic http://www.iopan.gda.pl/lipa.html

Od edytora (pflatau@ucsd.edu)

W dzisiejszym swiatecznym numerze:

--- WIELKI KONKURS na jubileusze LIPY

--- Jeden tekst ale za to w DWOCH jezykach. Podobno "Piwnica pod Baranami" spiewala to Papiezowi i sie wzruszyl.

Wesolych Swiat!

P.S. W nastepnym numerze - cegla.

Konkurs swiateczny na datowanie jubileuszy - ogloszenie

Najmilsi. "Donosy" obchodza jubileusze systemem dwojkowym. T.j. numery 2, 4, 8, 16, 32, 64 ... sa jubileuszowe. Donald Knuth numeruje kolejne wersje swojego programu "TeX" przyblizeniami Pi. T.j. 3.14, 3.141, 3.1415, ...

Nie mozemy byc gorsi. Oglaszam WIELKI KONKURS na numeracje jubileuszowych numerow Lipy. Wygrana - Mercedes, ktory zostanie przeslany poczta. Oczywiscie numery jubileuszowe Lipy musza byc (1) zwiazane ze zjawiskami meteorologicznymi lub oceanograficznymi (2) monotonicznie wzrastac (t.j. nie mozna proponowac jubileuszowego numeru dziesiatego, dwudziestego, a potem czternastego).

Propozycje prosze wysylac do edytora 1) elektronicznie 2) z krotkim uzasadnieniem zjawiska/teoryi.

Konkurs na jubileusz - teoria Milankowicza

Ja (PJF) proponuje obchodzic jubileusze "Lipy" w.g. teorii Milutina Milankowitcha. T.j. co 22000, 41000, i 100000 lat. Ponizej, streszczenie teorii orbitali:

Theory of climate change,
which was developed in 1920 by Milutin Milankovitch, a Serbian scientist, explains not only the Holocene recovery but also many of the remarkable fluctuations of Pleistocene times. The theory is based on the fact that the orbit of the Earth around the Sun varies in three ways. All of the variations are small, but, especially when they reinforce one another, they are sufficient to cause significant redistributions of solar heating between latitude belts or hemispheres. Because the hemispheres differ greatly in surface properties and heat storage capacity, these orbitally caused variations in the pattern of solar heating are capable of changing global climate. The three modes of variation are the obliquity, or tilt, of the Earth's axis, which varies with an average period of about 41,000 years; the precession of the equinoxes, which refers to the movement of perihelion (the point when the Earth is nearest to the Sun) around the path of orbit and which varies with a period of roughly 22,000 years; and the eccentricity of the orbit, varying with a period near 100,000 years. Elaborate mathematical analysis of these parameters has made it possible to calculate the corresponding changes in solar heating of the Earth over the past 750,000 years.

These calculations show, for example, that over the past 18,000 years the amount of solar energy reaching the Earth in summer was concentrated in the Northern Hemisphere, reaching a peak of 40 watts per square metre above 1950 values between 12,000 and 9,000 years ago. This corresponded to an 8 percent increase in northern high-latitude summer heating, enough, it is believed, to account for the wastage of the Fennoscandian and North American glaciers (only Greenland's ice survives today). The winter cooling that compensated for the extra summer heat (orbital changes produce such seesaw effects) was most effective in the subtropical latitudes of the Southern Hemisphere. After 9,000 BP these trends reversed, and the modern world has a solar heating pattern much like that of the late Wisconsin maximum in 18,000 BP.

DEZYDERATA

[Desiderata text removed due to claims of Mr. Robert Bell that he has international copyright for the poem - June 26, 1997]

[Tekst Dezyderaty usunieto na zadanie pana Roberta Bella, ktory twierdzi, ze ma do niego prawa autorskie - 24.06.1997]