Einsteins Theory Of Relativity, Basic Essay

2497 words - 10 pages

Innehållsförteckning:Innehållsförteckning 1Inledning1. Syfte och tillvägagångssätt 22. Begränsningar 23. Sammanfattning 2Kap. 1, Relativistiska effekter, Ljuset.1.1 Begynnelsen 31.2 Ljusets hastighet 31.3 Ljushastigheten är konstant 31.4 Teorin 41.5 Konsekvens 4Kap. 2, Relativistiska effekter, Tiden.2.1 Tidsdilationen 52.2 Bevis 52.3 Tolkning 52.4 Experimentella belägg för tidsdilationen 6Kap. 3, Relativistiska effekter, Paradoxer.3.1 Skenbara paradoxer 73.2 Tvillingparadoxen 73.3 Myonerna 73.4 The train experiment 7Kap. 4, Relativistiska effekter, Massa & Energi.4.1 Massans hastighetsberoende 84.2 Rörelseenergi 84.3 Massa och energi 8Register.1. Ordlista 92. Formler och konstanter 93. Källförteckning 104. Litteratur tips/ Författar tips 10Bilagor1. Tabell och diagramöver ökningen av rörelseenergi vid hastigheter nära ljushastigheten. 11Inledning1. Syfte och tillvägagångssättSyftet med rapporten är att på ett så lättförståeligt och enkelt sätt som möjligt redogöra, samt väcka intresse för, de mest basala idéerna och teorierna inom den Speciella Relativitetsteorin, med de avgränsningar som nämns. Materialet i rapporten är sekundärdata tagna och bearbetade från redovisad litteratur.2. BegränsningarRapporten är begränsad till de grundläggande tankegångar kring den speciella relativitetsteorin, som man kan finna praktisk tillämpning för i det dagliga livet, samt för förståelsen av omvärlden. Ämnen som tagits upp är ljushastighetens konstans, tidsdilation samt effekter på massa och energi.3. SammanfattningÅr 1905 utvecklade Albert Einstein sin speciella relativitetsteori. Denna berör föremål som rör sig i höga hastigheter, hastigheter närmare ljusets, och de fenomen som följer av hastigheten.Ljushastigheten har, experimentellt och teoretiskt, beräknats vara konstant. Detta leder till konstaterandet att uppfattningar som tid och rum är relativa, d.v.s. att sinnesintryck såsom tid och längd är subjektiva uppfattningar och kan variera från en iakttagare till en annan beroende på vilka referenssystem som används. Det leder även till konstaterandet att massa, även det, är en relativ uppfattning, samt att massa och energi i grunden är samma sak. Detta kan sägas få långtgående konsekvenser inom t.ex. rymdforskningen då massan ökar med hastigheten för att nära ljushastigheten närma sig oändligheten och därigenom få till följd att resor i ljusets hastighet, med dagens kunskap, ej är möjligt då; tiden är icke existerande i ljushastigheten samt att massan blir oändlig och därigenom...

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