Human

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The Human Race is considered the most intelligent species on Earth. If the colonization of Mars is successful, the human race will be the only known species living on more than one planet.

What makes humans different from other species?

Unlike other known species, the human race has created artificial means for a great variety of activities. The accumulation and distribution of knowledge in written form and the global communication with nearly the speed of light is a special ability. The human race is also the only known species capable of space travel.

Biological

Adult human individuals on Earth have the following properties:

  • Height: about 155..190 cm
  • Weight: about 50..80 kg
  • Maximum age: about 80 years
  • Energy consumption by food: 6000 to 16000 kJ (1,66 to 4,44 kWh) (depends on size and activity)
  • Air consumption: (to be completed)
  • Water consumption: 2 to 4 liters per day
  • Blood heat: 37°C
  • Preferred environmental temperature: 20°C
  • Symbiotic relationship with a number of microorganisms (especially in the gut.)

The metabolism of human beings depends, just like animals and various microbes, on water. The human body contains about 70% water.

Ah that's great I would love to visit a place like that!All the outfits from the games were cool and the D'Ni eltevaor was awesome Also, I realized I've only seen Rand Miller in pictures before, so it was cool to see him in the video. I might have to take a second look because I was pretty overwhelmed by all the things to look at in the video, and my eyes momentarily paid much more attention than my ears. So a second listen could give me a clue to what they're talking about!

Facts and figures

  • "Daily Kilojoule Intake" (14-16 year old boys) while moderate active: "11900-13200" kJ [1]
  • "Energy expenditure of an average day for a healthy male": "2640" kcal, daily kJoule intake with "three hours of hard work": "3630" kcal [2]


Average Human Needs [3]
INPUTS kg/person/day
Oxygen 0.83
Dry Food 0.62
Water in Food 1.15
Food Preparation Water 0.79
Drinking Water 1.61
Oral Hygiene Water 0.36
Hand and Face Wash Water 1.81
Shower Water 5.44
Clothes Wash Water 12.47
Dish Wash Water 5.44
Urinal/Commode Flush Water 0.49
Total: 31.0 kg/person/day
Average Human Outputs [4]
OUTPUTS kg/person/day
Carbon Dioxide 1.00
Water from Respiration
and Perspiration
2.28
Urine 1.50
Urine Solids 0.06
Hygiene Water 7.18
Latent (Evaporated)
Hygiene Water
0.44
Clothes Wash Water 11.87
Latent (Evaporated)
Clothes Wash Water
0.60*
Latent (Evaporated) Food
Preparation Water
0.04
Dish Wash Water 5.41
Latent (Evaporated) Dish Wash
Water
0.03
Feces Solids 0.03
Feces Water 0.09
Sweat Solids 0.02
Urinal and Commode
Flush Water
0.49
Total: 31.0 kg/person/day

Open issues

  • What is the optimum temperature in the artificial habitat to minimize the energy consumption by food (may be different at day and night, during work and leisure)?

References

  1. at Strathmore Secondary College: activity1astronaughtnutrition.pdf
  2. AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS: Human nutrition in the developing world
  3. Space Station Freedom Design Parameters - NASA SSP 30362 (1990)
  4. Space Station Freedom Design Parameters - NASA SSP 30362 (1990)