[PAR] [TLE] Galileo Galilei [SEP] Galileo Galilei (] ; 15 February 1564 – 8 January 1642) was an Italian polymath: astronomer, physicist, engineer, philosopher, and mathematician.  He has been called the "father of observational astronomy", the "father of modern physics", the "father of the scientific method", and the "father of science".  Galileo studied speed and velocity, gravity and free fall, the principle of relativity, inertia, projectile motion and also worked in applied science and technology, describing the properties of pendulums and "hydrostatic balances", inventing the thermoscope and various military compasses, and using the telescope (a Dutch optical instrument) for scientific observations of celestial objects. [PAR] [TLE] Square–cube law [SEP] The square–cube law (or cube–square law) is a mathematical principle, applied in a variety of scientific fields, which describes the relationship between the volume and the area as a shape's size increases or decreases.  It was first described in 1638 by Galileo Galilei in his "Two New Sciences" as the "...ratio of two volumes is greater than the ratio of their surfaces".
[PAR] [TLE] Galileo Galilei [ SEP ] Galileo Galilei ( ] ; 15 February 1564 – 8 January 1642 ) was an Italian polymath : astronomer , physicist , engineer , philosopher , and mathematician . He has been called the " father of observational astronomy " , the " father of modern physics " , the " father of the scientific method " , and the " father of science " . Galileo studied speed and velocity , gravity and free fall , the principle of relativity , inertia , projectile motion and also worked in applied science and technology , describing the properties of pendulums and " hydrostatic balances " , inventing the thermoscope and various military compasses , and using the telescope ( a Dutch optical instrument ) for scientific observations of celestial objects . [PAR] [TLE] Square – cube law [ SEP ] The square – cube law ( or cube – square law ) is a mathematical principle , applied in a variety of scientific fields , which describes the relationship between the volume and the area as a shape 's size increases or decreases . It was first described in 1638 by Galileo Galilei in his " Two New Sciences " as the " ... ratio of two volumes is greater than the ratio of their surfaces " .
The square–cube law was first described by an astronomer born in what year?
The square – cube law was first described by an astronomer born in what year ?
1564
1564