What is macrotechnology?

What do humans have that robots don't? Is a privy a toilet? What is the difference between a physical object and a virtual object? How do builders insulate new homes? Can a 4 Pole 50 Hertz 440 V induction motor run at 900 rpm? How do you change AC motor speed? How many lumen in a 600 mm T8 led tube? What are two areas of science in desalination? How do you calculate the ir1 and ir2 in a parallel circuit? Who makes more money IT or software engineers? What does venturing mean? Who did the in vitro synthesis of polyribonucleotides? What is reciprocity theorem in antenna? Can Roto-Rooter unclog plumbing flue? What is h1 in HTML stand for? What are Steam tables used for? In RC circuits the voltage leads the current? What are the advantages and disadvantages of using glass? Using pointers. write a function that receives a character string and a character as argument and deletes all occurrences of this character in the string? What kind of Pipe for closed loop heat pump?