Hej LarsBj

Citat:

Men er du sikker på, at Jan Oort foreslog denne teori, fordi han mente, den ville forklare en uoverensstemmelse i dateringen af universet???



Jeg må indrømme at selve ideen ikke direkte blev oprettet for at forklare dette. Men den blev taget op for at forklare den modsætning at der stadig findes kometer i solsystemet. Altså man "vidste" at solsystemet er ældre end 20k år. Derfor var man nødt til at finde en forklaring til den modsætning at der stadig findes kometer omkring solen. Altså man have en start forstilling om at universet var gammel og søgte derfor at forklare hvordan det kunne lade sig gøre at der er kometer.
Kreationisterne har en startforstilling om at universet er ungt og prøver der ud fra at forklare dataerne ud fra den forstilling. Hvad er forskellen?
På wikipedia står:
"In 1932 Ernst Öpik, an Estonian astronomer, proposed that comets originate in an orbiting cloud situated at the outermost edge of the solar system. In 1950 the idea was revived and proposed[1] by Dutch astronomer Jan Hendrick Oort to explain an apparent contradiction: comets are destroyed by several passes through the inner solar system, yet if the comets we observe had existed since the origin of the solar system, all would have been destroyed by now. According to the hypothesis, the Oort cloud contains millions of comet nuclei, which are stable because the sun's radiation is very weak at their distance. The cloud provides a continual supply of new comets, replacing those that are destroyed"