Discover Questions

What is the magnification of a compound microscope with objective d eyepiece lenses of 0.8cm and 4cm,and the length of microscope is 15cm? Prove that if n is odd that n^3+3n^2-n-3 is divisible by 48? Hypothetically, if you are falling, would shooting a grapple hook (like Batman s) and retracting yourself to the ground break the fall? What's the point of studying long and hard to acquire skills and knowledge if we all inevitably die anyway.? Algebra question (possible roots)?