Does anyone wanna see the time travel math I made during my college physics class instead of listening before I dropped out?

seen from Germany
seen from China
seen from China

seen from Malaysia
seen from Türkiye
seen from United States
seen from United States
seen from Philippines
seen from Türkiye

seen from Sweden

seen from Sweden

seen from Thailand
seen from Belgium
seen from Hong Kong SAR China
seen from Thailand
seen from China
seen from Uzbekistan
seen from Germany
seen from Canada
seen from Brazil
Does anyone wanna see the time travel math I made during my college physics class instead of listening before I dropped out?