I just saw a robot video of a planetary rover
I wonder if the rover treads could drive a path with regular ndentations like a multiwell elisa plate
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then the rover could dribble different chemicals at each place as well as do multiple
passes to vary concentration much like an nkjet that precisely concentrates the chemical amount
scientists preplan their activities yet having numerous possible variations its a way scientists could do more nteractive research with preplanned procedures
with fizzy dirt a multiwell tread chamber group could detect the particular precise "pH" it fizzes; quotes on "pH" as you'd use a different polar liquid
thinking of electrochemistry a few dissimilar metal pairs that have alternate chemistry when near a third different metal could be like visible chemondicators A Liquid like ammonia attached to a hydrocarbon Ch3(CH2)NH2 or tetrahydrofuran is a possible polar solvent If the rover carried a liter or two of THF it could fill 10,000 test chambers
with
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they could do a really telegenic stunt like inkjet spraying thermite then viewing the mineral spectra kind of like boron bead plasma colors
basically they'd spray a reactive metal as well as a powder oxidant which when they react together would make a plasma spectra with the unique martian minerals
I like the idea of the treads creating reaction chambers it might complement the grab dirt n then process reactors
anyway if a person can think of anything to do with a million [][][][][][][][] standardized separate reaction chambers the rovers treads could do those experiments
If the energy is there you could use a laser to zap the chambers as well whether it is warmth or even to "cure" a polymer fluid at the test chambers