GrowingStructuresGroup:Questions: Difference between revisions
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=What possible nanorobots can we think of?= | =What possible nanorobots can we think of?= | ||
==Biological, chemical, mechanical, biomechanical?== | |||
Multifunctional "cells" (chains of nanorobots, organelles) | Multifunctional "cells" (chains of nanorobots, organelles) | ||
# light sensors | # light sensors | ||
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# CO<sub>2</sub> → C + O<sub>2</sub> decomposition | # CO<sub>2</sub> → C + O<sub>2</sub> decomposition | ||
# CNM composition | # CNM composition | ||
==In what environments could nanorobots operate?== | |||
*Fluid? Air? Other solutions? | *Fluid? Air? Other solutions? | ||
=How could a nanorobot decode light wavelengths?= | |||
==What would be minimum wavelengths?== | |||
*visible light: ~500nm | *visible light: ~500nm | ||
*X-rays: ~0.5nm | *X-rays: ~0.5nm | ||
==What sensors would they need?== | |||
=Getting C from CO<sub>2</sub>== | |||
==How could nanorobots decompose CO<sub>2</sub> → C + O<sub>2</sub>?== | |||
==How much air is necessary for a m<sup>3</sup> CNM?== | |||
*CO<sub>2</sub> quantity in air: 0,00076626 kg/m<sup>3</sup> or approx. 1g/m<sup>3</sup> <br> | *CO<sub>2</sub> quantity in air: 0,00076626 kg/m<sup>3</sup> or approx. 1g/m<sup>3</sup> <br> | ||
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*with air speed 1m/s → 78 days needed for 1m of CNM <br> | *with air speed 1m/s → 78 days needed for 1m of CNM <br> | ||
==How fast could nanorobots catch CO<sub>2</sub> molecules from a normal atmosphere?== | |||
==What energy is necessary to decompose a CO<sub>2</sub> molecule?== | |||
==What flux has to be transfered from the projector?== | |||
=How could a nanorobot build CNM?= | |||
==How exactly do plants grow?== | |||
=What self-replication methods could be used?= | |||
==What is the minimum frequency of self-replication to be effective?== | |||
*1 nanorobot size ≈ 100 nm → area = 10<sup>4</sup> nm<sup>2</sup> <br> | *1 nanorobot size ≈ 100 nm → area = 10<sup>4</sup> nm<sup>2</sup> <br> | ||
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*20' per cycle = 15 hours to cover 1m<sup>2</sup> starting with 1 nanorobot | *20' per cycle = 15 hours to cover 1m<sup>2</sup> starting with 1 nanorobot | ||
==Bacteria can reproduce easily, but can they be instructed to by a specific light wavelength?== | |||
=Possible Underlying Engineering Tradeoffs= | |||
==Implicit (e.g., acorn, bottom up) versus Explicit (e.g., light-directed nanobots, top down) control?== | |||
==Local Acquisition (e.g., carbon fixation) versus Exogenous Supply (e.g., cane sugar, ammonia) of energy and materials?== | |||
==Local Assembly (i.e., on site "growth") versus Distal Manufacture / Delivery (e.g., "pumpkin patch")== | |||
Revision as of 16:15, 12 October 2009
(back to the Growing Structures Group)
What possible nanorobots can we think of?
Biological, chemical, mechanical, biomechanical?
Multifunctional "cells" (chains of nanorobots, organelles)
- light sensors
- CO2 "catchers"
- CO2 → C + O2 decomposition
- CNM composition
In what environments could nanorobots operate?
- Fluid? Air? Other solutions?
How could a nanorobot decode light wavelengths?
What would be minimum wavelengths?
- visible light: ~500nm
- X-rays: ~0.5nm
What sensors would they need?
Getting C from CO2=
How could nanorobots decompose CO2 → C + O2?
How much air is necessary for a m3 CNM?
- CO2 quantity in air: 0,00076626 kg/m3 or approx. 1g/m3
- C quantity air: 0,0002088 kg/m3 or approx. 0.2 g/m3
- CNM density: 1400 kg/m3 => for 1m3 CNM 6.7*106m3 of air are needed
- with air speed 1m/s → 78 days needed for 1m of CNM
How fast could nanorobots catch CO2 molecules from a normal atmosphere?
What energy is necessary to decompose a CO2 molecule?
What flux has to be transfered from the projector?
How could a nanorobot build CNM?
How exactly do plants grow?
What self-replication methods could be used?
What is the minimum frequency of self-replication to be effective?
- 1 nanorobot size ≈ 100 nm → area = 104 nm2
- 1m2 = 1014 nanorobots → 45 replication cycles
- 20' per cycle = 15 hours to cover 1m2 starting with 1 nanorobot
