Question Number 120331 by Dwaipayan Shikari last updated on 30/Oct/20
Commented by Dwaipayan Shikari last updated on 30/Oct/20
$${Old}\:{unanswered}\:{Question}.{But}\:{i}\:{want}\:{to}\:{discuss}\:{it} \\ $$
Commented by MJS_new last updated on 30/Oct/20
$$\mathrm{half}\:\mathrm{speed}\:\mathrm{of}\:\mathrm{light}\:\mathrm{means}\:\mathrm{that}\:\mathrm{one}\:\mathrm{hour}\:\mathrm{on} \\ $$$$\mathrm{the}\:\mathrm{train}\:\mathrm{is1}/\:\sqrt{\mathrm{1}−\left(\frac{\mathrm{1}}{\mathrm{2}}\right)^{\mathrm{2}} }=\frac{\mathrm{2}}{\:\sqrt{\mathrm{3}}}\:\mathrm{hours}\:\mathrm{on}\:\mathrm{the} \\ $$$$\mathrm{platform}.\:\mathrm{it}'\mathrm{s}\:\mathrm{simply}\:\mathrm{not}\:\mathrm{fast}\:\mathrm{enough}... \\ $$
Commented by Dwaipayan Shikari last updated on 30/Oct/20
$${But}\:{in}\:{long}\:{time}\:{interval}\:{it}\:{will}\:{be}\:{a}\:{very}\:{big}\:{difference} \\ $$$$\left..{Amusing}\:{but}\:{it}\:{is}\:{true}\::\right) \\ $$$${Do}\:{you}\:{play}\:{piano}\:{sir}? \\ $$
Commented by Dwaipayan Shikari last updated on 30/Oct/20
$${So}\:\:{as}\:{per}\:{this}\:{theory}\:{light}\:{has}\:{no}\:{time}?\: \\ $$$$\frac{\mathrm{1}}{\:\sqrt{\mathrm{1}−\mathrm{1}^{\mathrm{2}} }}\rightarrow{Undefined}\:{or}\:{doesn}'{t}\:{exist} \\ $$$${I}\:{am}\:{just}\:{learning}\:{this}\:{and}\:{i}\:{get}\:{amused}\:.\:{Such}\:{an}\:{wonderful} \\ $$$${thinking}\:{of}\:{space}−{time}\:\:\:\: \\ $$
Commented by MJS_new last updated on 30/Oct/20
$$\mathrm{the}\:\mathrm{dilatation}\:\mathrm{is}\:\sqrt{\mathrm{1}−\frac{{v}^{\mathrm{2}} }{{c}^{\mathrm{2}} }}\:\mathrm{and}\:\mathrm{indeed}\:\mathrm{at}\:\mathrm{the} \\ $$$$\mathrm{speed}\:\mathrm{of}\:\mathrm{light}\:\mathrm{time}\:\mathrm{stands}\:\mathrm{still},\:\mathrm{mass}\:\mathrm{and} \\ $$$$\mathrm{energy}\:\rightarrow\:\infty\:\mathrm{and}\:\mathrm{length}\:\rightarrow\:\mathrm{0} \\ $$$$\mathrm{but}\:\mathrm{it}'\mathrm{s}\:\mathrm{hard}\:\mathrm{to}\:\mathrm{explain}\:\mathrm{or}\:\mathrm{understand}\:\mathrm{some} \\ $$$$\mathrm{of}\:\mathrm{the}\:\mathrm{side}\:\mathrm{effects}... \\ $$
Commented by MJS_new last updated on 30/Oct/20
$$...\mathrm{and}\:\mathrm{no},\:\mathrm{I}\:\mathrm{play}\:\mathrm{all}\:\mathrm{kinds}\:\mathrm{of}\:\mathrm{guitars}\:\mathrm{but}\:\mathrm{no} \\ $$$$\mathrm{keyboards}\:\mathrm{although}\:\mathrm{I}\:\mathrm{am}\:\mathrm{able}\:\mathrm{to}\:\mathrm{compose} \\ $$$$\mathrm{on}\:\mathrm{piano}\:\mathrm{I}\:\mathrm{cannot}\:\mathrm{play}\:\mathrm{it}...\:\mathrm{sounds}\:\mathrm{weird}\:\mathrm{but} \\ $$$$\mathrm{it}'\mathrm{s}\:\mathrm{true} \\ $$
Commented by Dwaipayan Shikari last updated on 30/Oct/20
$${I}\:{am}\:{not}\:{sure}\:{that}\:{i}\:{am}\:{true}.\:{Was}\:{Mozart}\:{Austrian}\:{or}\:{German}? \\ $$
Commented by MJS_new last updated on 30/Oct/20
$$\mathrm{yes}\:\mathrm{and}\:\mathrm{no}.\:\mathrm{when}\:\mathrm{he}\:\mathrm{lived},\:\mathrm{Austria}\:\mathrm{didn}'\mathrm{t} \\ $$$$\mathrm{yet}\:\mathrm{exist}.\:\mathrm{there}\:\mathrm{had}\:\mathrm{been}\:\mathrm{several}\:\mathrm{principalities}. \\ $$$$\mathrm{but}\:\mathrm{geographically}:\:\mathrm{yes} \\ $$