My self reproducing machine

1. Selfreproducing machine

2. ‘Onmodels of reproduction’byHomer Jacobson Musthavethefollowingelements: Environment, wherepartsfreelycirculate Adequatesupply of parts Source of energytoassemblytheparts Anassembledproto-individual (musttakethepartsfromenvironmenttohaveitsowncopy)

3. Analogousto bacteria Growth and reproduction .Bacteria, in optimalconditions, grow and divide rapidly. .Can grow in solidorliquidarea. .Follows 3 phasesforgrowth and reproduction: 1 lagphase: slowgrowth, adaptationtohighnutrientenvironment and prepare tofastgrowth 2 logarithmicphase: exponentialgrowthuntil a lack of one of thenutrientslimitsgrowth 3 stationaryphase: no nutrients, bacteria cannotcontinueto produce indefinitely.

4. Analogousto bacteria Movement and arrangement(1st kind: Flagella) Bacteria rotate clockwise counter-clockwise creates a torque Long thin structures to propel themselves Examples of bacterial flagella arrangement schemes

5. Analogousto bacteria Movement and arrangement(2nd kind: Cilium) Cilium can change its direction and beat forward, going backward. It can turn and take different directions thanks to its structure.

6. Analogousto bacteria Movement and arrangement (Flagellum and Cilia) (chosen)

7. Environment Options Problem: More informationaboutplanets’ surface and surrounding Problem: Lotsof obstacles (people, animals, buildings, plants, etc.) Problem: Fireresistantmaterials

8. Environment Chosen: Water Reasons: .Option to follow the water direction without using so much energy . ‘Less crowded’ . Not so many intelligent species capable to destroy or get rid of machines. .Less human interference .Chance to choose state of water (liquid or solid?) …should choose liquid because of a temperature reading. T° = movement .Easier interaction between machines

9. Sensors and materials(option1) .Sensors: possibility to recognize % of elements in each part of the machine. .Example. Left arm has X% of Al, Y% of Cu, whereas right arm has Z% of Al and N% of Cu. .% of basic elements might help identify which part it is, shape, size, weight and the correct steps to follow for the reproduction.

10. Sensors and colors(option2) .Sensors: possibility to recognize colors .Relation between a part of the machine and a range of colors thanks to the PANTONE codes, where almost 3000 colors can be found. example: from code 1767 to 1777 it is considered red and it is the left arm, from code 1867 to 1877 it is considered yellow and it is the right arm) .Colors might help identify which part it is, shape, size, weight and the correct steps to follow for the reproduction (1stgreen body, 2ndred left arm, 3rdyellow right arm, etc.)

11. Aquaself Sensorysystemtoidentifyparts(color), location, order Source of energy Movement (beating) Use of rubberto catch parts (friction) Heavierzonetoavoid frontal sinking up-down righ-left Armstoavoidinterferencewithrocksorany material in water, and tocarryparts of the machine.

12. Aquaself Turnright forwards backwards Turnleft Important: rotation and movingduring/forselfreplication

13. Aquaself 60° of visiontoidentify partsfloating Solar energy water energyfromwater? Heaviertoavoid frontpartsink

14. Aquaself .Gathertoformcommunities .Chance tomove once thesource of energy has decreased (analogoustobacteria: stationaryphase)