1. Explain who is doing more work and why: a bricklayer carrying bricks and placing them on the wallof a building being constructed, or a project supervisor observing and recording the progress of the
workers from an observation booth.

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19