Astronauts can lose up to ~20% of their bone mineral density during their extended time in micro‐gravity. Draw the stress‐strain curve for both compact bone and cancellous bone for an astronaut in compression before the leave on their space journey and predict how this curve will change for this astronaut immediately after they return to Earth.

he made 11 calls in one day

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

the ima (higher than 1m) will be greater than the ima with the height of 1m.