Question: If the velocity angle is ln[(1 + √5)/2] ≅ 0.481, what is the condition/parameter?
SQL: SELECT "Condition/Parameter" FROM "1-15314901-1" WHERE "Velocity angle η in i-radians" = 'ln[(1 + √5)/2] ≅ 0.481';

Question: If the the condition/parameter is Rapidity of 2 hyperbolic radians, what is the coordinate velocity v dx/dt in units of c?
SQL: SELECT "Coordinate velocity v dx/dt in units of c" FROM "1-15314901-1" WHERE "Condition/Parameter" = 'Rapidity of 2 hyperbolic radians';

Question: If the coordinate velocity v dx/dt in units of c is (e 2 − 1)/(e 2 + 1) ≅ 0.761, what is the velocity angle η in i-radians?
SQL: SELECT "Velocity angle η in i-radians" FROM "1-15314901-1" WHERE "Coordinate velocity v dx/dt in units of c" = '(e 2 − 1)/(e 2 + 1) ≅ 0.761';

Question: What is the coordinate velocity v dx/dt in units of c total number if the velocity angle η in i-radians is ln[2 + √5] ≅ 1.444?
SQL: SELECT COUNT("Coordinate velocity v dx/dt in units of c") FROM "1-15314901-1" WHERE "Velocity angle η in i-radians" = 'ln[2 + √5] ≅ 1.444';

Question: If the condition/parameter is Rapidity of 1 hyperbolic radian, what is the proper velocity w dx/dτ in units of c?
SQL: SELECT "Proper velocity w dx/dτ in units of c" FROM "1-15314901-1" WHERE "Condition/Parameter" = 'Rapidity of 1 hyperbolic radian';

Question: If the lorentz factor γ dt/dτ = e/mc 2 is √5 ≅ 2.236, what is the proper velocity w dx/dτ in units of c?
SQL: SELECT "Proper velocity w dx/dτ in units of c" FROM "1-15314901-1" WHERE "Lorentz factor γ dt/dτ = E/mc 2" = '√5 ≅ 2.236';