Did Leonardo Da Vinci's inventions help society?

Is laminate flooring better with or with out backing? How many type of soil tests in roads and bridges? From where the word technology is derived from? How would you describe the construction and working principle of PMMC instruments with its three advantages? In some areas heating and cooling of homes is now popularly done by .? When did sea world open? List two types of errors that can lead to an infinite loop? What is the connection between science and technology? When the individual wires of a strand on a rope are perpendicular to run of the rope it is classified what? How many watts does an eighty foot tall wind turbine produce? What can a transistor do inside a CPU? How can hackers protect people from exposing personal information? What is finished floor level? How do you write a program in C to swap two variables using a function? Can the operand expression in an ORIGIN statement contain forward references if so outline the statement can be processed in a two pass-assembler scheme? What is the hardness of Poly Crystalline Diamond tool? What commands to draw pentagon in logo? What is tooth cutting tools? What is the sound of silk called? What are the physical resources of the Philippines?