This fits in with what I saw in staff in astronomical facilities and was reporting to the management team: 10-14% Oxygen: Emotional upset, abnormal fatigue, disturbed respiration.

Industrial liquid gas containers were left open and venting gas into the indoor environment in high altitude astronomy. On reflection, I realized that I routinely observed mental and physical effects that match those of a low oxygen environment in staff that I supervised.

When discharging industrial gas into the indoor environment in high altitude astronomy, we never wore breathing respirators that fed us oxygenated air at above the legally required 19.5% oxygen levels.

Deandre gazed at her like she was the stars, and he was a mere astronomer, searching her face for the constellations, admiring the beauty that was there.

My memories of my time in high altitude astronomy indicate that there were no oxygen concentration monitors or alarms in the areas that liquid nitrogen was in use at the high altitude astronomical facilities where I had worked.

And when statesmen or others worry him [the scientist] too much, then he should leave with his possessions. With a firm and steadfast mind one should hold under all conditions, that everywhere the earth is below and the sky above and to the energetic man, every region is his fatherland.

At the W.M. Keck Observatory on the very high altitude summit of Mauna Kea, there was no routine monitoring of mental functioning, blood oxygen levels, blood pressure or heart rate of workers.

Abnormal radiation exposure and oxygen starvation teaches you that reality is just a perception that is derived from your immediate environmental conditions.

One of the biggest lies that is currently being told in the USA workplace is on the legally required OSHA poster: All workers have the right to a safe workplace.

But I will confess 
that I began as an astronomer—a liking
for bright flashes, vast distances, unreachable things,
a hand stretched always toward the furthest limit—
and that my longing for you has not taken me
very far from that original desire
to inscribe a comet’s orbit around the walls
of our city, to gently stroke the surface of the stars.