I read that lasers can polish lens glass to 10 micrometer bump size, but 5 um or 1um is optically transparent, its likely already well researched but a 111 times faster pulsed laser making a chirp could be able to reach high energy glass modification
temps while lasting much briefer intervals so a swirly surface scan has more voxels on the surface to laser away undulations on the surface, wavelets, grinding with lasertweezers and scrap microparticles, use wavelets to leave last pass islands that can
be made into polishing grit, or just leave a bunch of meridians to turn to polishing grit on a spherical lens, sort of like zapping off the lines on the at&t sphere to stays put micrometer dust then vigorously wiggling that micrometer dust with laser
tweezers to physically polish the surface to optical transparency. As another technology at 3d printing eentsy laser comminutable polishing grit or dust could be printed on outer surface layer, then the new part of the 3D printer, the laser tweezing/
laser tractor beam just swirls the polishing particles to give the upper surface and possibly sides a super smooth polish (swirling polishing particles with a laser kind of reminds me of a rotating with light radiometer, they work without a fluid, i
first read about laser tractor beams working in a fluid/liquid)

Aquarium peltier nooks for fish to enjoy and possibly live longer from, think of a bunch of little, medium, and large round windows on a beautiful rounded piece of architecture in a fishtank, each windows sides have an annular cooling or warming peltier
element that cools or warms the water just at that windows depth and volume, fish that liked cooler water could hang out in those window volumes and fish that liked warmer water could visit those windows, perhaps the aquarium decoration could have angled
mirrors so you could see its entire decorative body when looking at the aquarium, fish that sought out the cooler nooks might live longer as zebrafish live over 70% longer in cooler water, note, this is just an aquarium decoration

Clean photovoltaics transparent containers with clip on "itty bitty book light" laser tweezer/laser tractor beam that vigorously agitates dust particles during any rainfall or between rainfalls, the clip on photovoltaic cleaner, rather than an itty bitty
book light could be a long tube. Rather than expensive dynamic aiming, either a $. 1-1.00 multimirror microprojecter optic ic could make and steer the 2D laser tweezer pattern to sweep away the dirt. Multimirror array scanning or casting laser tweezers
or laser tractor beam is also a possible good photovoltaic and camera surface cleaner for cars like self driving cars where keeping the camera/video/lidar clean is beneficial, and robots, including social companion robots, and planetary explorer vehicles
and robots

Peltier effect electrocooling dew making annulus around a lens causes a film of water to gather each morning and flow across a lens, keeping it clean

Cheap and easy 10-24% lifetime photovoltaic panel power gain, Also, the cheapest 120 watt wet/dry handheld vacuum at alibaba is $1.80-2.00, simply placing the same assembly as an air impeller to blow dust off a multimeter area of photovoltaic (panel
container) the vacuum is described at alibaba as being competent with water, and of course rather than one oval section sucking tube, the air impelling version would have a long apertured flute holish tube at the higher part of the photovoltaic panel to
blow particulates off,another thing photovoltaic panels could do to stay clean is to vibrate resonantly during rain events, this assists the rain or also the motionized air to reduce dirt and particle accumulation, physics resonance causes motion to
accumulate in a system so a small gradual motion accumulates to large motions as energy accumulates with time, a piezoelectric vibrator is 10¢-1$, and a sexual pleasure weighted thunking to vibrate motor is about 35¢, putting resonant vibrations during
the rain could be very cheap and heighten power output

Another way to keep photovoltaic panels cleaner is to use electrode water (h30+ oh-) from electrode water produced when rainwater naturally wets and pours off of a multielectrode polymer or carbon group of stripes that electroionize the water running
down the photovoltaic panel during a rain event, the h20 fragment ions in the electrode water function kind of like a wetting enhancer and material dissolver, the ionic electrode water could alternate between basic and acidic to dissolve away different
gunks, the main benefit is no moving parts, and extreme cheapness at near 82¢ or less to clip on to an existing panel, if conductive carbon fiber cloth (6¢) can be used in two 1/2 cm stripes, and be laminated to a meter of plastic with a snap to edge
shape like alibaba plastic gutter (3 to 70¢) and 3¢ of wire and 1 cent for the 2-3 power balancing current limiting resistors and 2¢ for a fuse and indicator led then it is likely that manufacturing alibaba parts are 82¢ with a possible 21-23¢ if
the 9-11¢ clip on plastic gutters at alibaba are used. If ionic cleaning rainwater makes photovoltaic panels just 1-4% more efficient from 23-82¢ of extra nonmoving parts that generates a bunch of fiscal value. Ionic electrode cleaning water is
harmless but could terminate plants or cause a mild rash, similar to putting citrus juice on the skin, the ionic water neutralizes itself before entering streams and is likely to be reactive for less than a minute when it reaches the ground and rapidly
combines with rainwater, i may not have mentioned that rainwater supplies all the water, and a complete absence of human maintenance is possible for decades. A person might think, "but rainwater is pure, there's no electrical conductivity to make the
ionic water" the solution to that is just run the thing at high enough voltage intermittently to get high voltage microsparks (microplasma) between the carbon fiber cloth meter long electrodes, when the electric sparks arc through the water and air they
make ions like nitrogen oxygen radicals and ozone that dissolve in the arriving rainwater to make an electrically conductive solution for the electrodes, although its possible a 3-7¢ multiple voltage doubling diode array or 5-9¢ alibaba transformer
would do it to make the nitrogen and oxygen ion thing, making it go to 28¢-85¢, but it might go down to something near 19¢ at alibaba if the nifty 10-70¢ snap on meter plastic bracket is replaced with a 2" wide stripe of transparent greenhouse wall
polyethylene plastic and the carbon fiber electrodes are durably glued or laminated to it

Another use of electrolyzed h3o+ oh- electrode water is to have drones fill up with it and apply it to weeds, perhaps spraying, or root water-pic motionizing to the roots of weeds with electrode water, or h2o2 from ozone dissolved in water will terminate
weeds, or permit 40-80% less chemical weed control chemicals to be used, saving money. Noting use of agricultural drones in the US, generating a farm or agribusiness' complete weed response electrode water of 28 or 11 gallons per 24 hours harbor freight
tools has 14 and 6 gallon wet dry canister shop vacuums for $59.99-109.99 each, these contain all the parts to make and pump electrode water if the motor is swapped for some carbon electrodes/wires, and a $1.79 alibaba water pump, the vacuums suction
staff and hose is swapped for a rotate to connect with water faucet connector. Thinking globally the canister shop vac is about $20.50 at alibaba, which is a really similar volume and parts to a bulk water electroionization machine for weed control with
drones at the developing world. The cheapest version i can figure out is $8-9 though. ($2 electrodes $3.3 trash can polymer reservoir with lid and wheels, $1. electric cord, circuit and brief tube connector to faucet, $2 pump

Reintroducing formed electrode water back to the electrode for even greater pH extremes, and greater drone lightness, range, and weed termination strength is possible

Chloride ion, other halogen ion, pool treatment tablets+water+e- makes chlorine, iodine, bromine gas at electrode, then bubbled through water these make insecticides or weed killers on farmsite and are delivered with drones
Catalyst might make a bunch more hydrogen peroxide from uv or even ozone
Urey experiment nitrogen chemicals in water, some of these e-+air chemicals might be insecticides that decompose to n fertilizer or weed killers

Far out thought, artificial lighting fresh vegetable food production facilities are profitable, so, can installing lots of led white lights outdoors at the garden or outdoor farm increase yields and even profitability at areas with ecologically valid
electricity sources, various hypercheap led lights exist, alibaba is near 3-9¢ for the leds that provide the lumens of what was a 100 watt bulb, that suggests the outdoor garden or farm light emitting blimp-drone or even the less efficient farm LED
streetlight pole could actually deliver 200% sunshine on sunny days and 100% sunshine on rainy sunless days, causing outdoor plants to grow and thrive tremendously, also, for plants sunshine-lit spring could come when frost risk passed in winter, here in
north bend spring light sustained growth could start mid january, causing earlier crops, and with outdoor lighting at farms to lengthen brightly lit periods during months 9-jan. Give the area three growing and cropping seasons, noting 100% artificial
lighting is profitable at netherlands multistory building grocery vegetable producers, augmenting outdoors agriculture with 40-80% extra lighting and an extra growing season is also likely to be profitable, making the outdoor artificial lighting as
beautiful and easy to appreciate as people can make it is beneficial, its possible using alibaba cheap medical oxygen concentrators to purify nitrogen and mix it with hydrogen such that it is unable to explode, theres a kind of simultaneous pair of
graphable equations where a sufficient % of hydrogen at a nitrogen hydrogen balloon intersects the spontaneous conflagration risk in open air, it could be that just 1-14% hydrogen with the rest nitrogen is sufficient to loft a daytime agricultural
lighting balloon, and that is simultaneously lacking conflagration possibility if it combines with the air.

Compared with the edison light bulb wattage lumens LED streetlight cob modules are possibly 1/10 of 1¢ to 1/2¢ per edison bulb lumen output per watt, that suggests a 100 watt outdoor light on an agricultural or domestic plant is 10¢ to 50¢, but
without the blimp, lamp post, witricity, or other material that makes it work

Plaid conductor actual velcro version
Walk/drive on it middle 20-33% between tractor rows photovoltaic, iffy

Thinking of making beneficial agricultural chemicals and treatments from electricity, oxygen concentrators are perhaps less than $51 at alibaba, and that 90% oxygen could cause near 4 times higher than 3% yield making ozone from air, noting the ozone can
be bubbled through water to make hydrogen peroxide which is described online as an insecticide at 1% solution, using the previously described shop vacuum variant, and an oxygen concentrator it might be on the same continent to estimate a machine that
makes hydrogen peroxide insecticide from air could make 14 or 28 liquid gallons (near but not 111 liters) of drone applied insecticide per 24 hours with a production apparatus about $59-78 of alibaba components, because that seems like 4 times more
hydrogen peroxide than some farms and agribusinesses would use there might be a possibility of combining $9-11 of modified shop vacuum with $11-14 of 1/4 of a much smaller oxygen concentrator without various displays, containers, and electronics,
suggesting mostly just the zeolites and two vacuum pumps, vacuum pumps are about $1.79 at alibaba and oxygen concentrator zeolites are a commodity chemical, that all suggests that a moderately sized farm could produce some part of its insecticide use
with comparatively environmentally benign hydrogen peroxide with a $24ish in alibaba parts apparatus

To improve the efficiency of ozone generation from atmospheric air or concentrated oxygen it is possible a catalyst could be used, some catalysts are electrical, and i read about a ruthenium catalyst that with electricity causes ammonia to be produced 15,
000 times faster, great research, and i think i read about an electrified magnetic field cobalt catalyst that tripled conversion of methane to another hydrocarbon, noting that its possible the possibly plural possibly minute metal air/gas contacts that
radiate electrical disharges into the oxygen are already electric, an electric catalyst might go really well with ozone generation, and noting both e- with magnetism at cobalt catalyst they could try plating the electrically conductive catalyst, likely a
metal, onto a magnetic support microbranching shape, surveying known catalysts as well as ozone catalyst engineering among people that know things could also be even more effective. Air or gasflow nozzle effects yield as well

Synthetic zeolites do things like increase preferred product yield in petrochemical refineries and pressure swing concentrate oxygen, nitrogen, and other gases, very focused sonic beams could make capillary like cracks in synthetic zeolites strongly
encouraging optimal dwell of fluids percolating through them, i think 3D sound as waves through a grating research already exists so they could use that to make the internal 3D optimized dendrification with a rapid cheap zap to each zeolite pellet, i do
not know if they rinse zeolites to freshen them for longer function, but if they do dendritic percolation cracks could support

My perception of synthetic zeolites from wikipedia is lots of channels with nooks and bends, changing the diameter of these channels is a little iffy as, maybe, they are near molecular diameters, it could be possible that doing the water based production
of zeolites that might exist it is possible to include molecular forms, dissolved in solution rather than as colloidal chunks, that sublime after the zeolite is formed, leaving behind fresh gap shapes in the molecular size channels, likely technologists
would go with different more sturdy molecules but camphor sublimes, turns from solid to gas, as does iodine, depending on the mass % the modified channels could be variably changed. I havent read about it but the way they swap out Na atoms with K atoms
with immersive treatment of glass in Koh to make tempered glass might be doable at any Na atoms in zeolites similarly for not that much $ Ga could swap out Al, be big, and strain the lattice, changing interatom lengths possibly changing the chemical
effects of the zeolite, another some atoms or most atoms swap out that could be tried is Ge and Si

Theres something called shocked quartz, could zeolites be shocked with a sudden pressure wave like that which geologists describe as shocking quartz, all sorts or crystal organizations result from shocking quartz and perhaps they at some pressure and
pulse form and duration would produce zeolites that function better. thatreceptor stuff

physics resonant frequency of mosquito shaped/mass objects, neutralizes mosquitos, if you shake mosquitos with resonant vibration build up they might misnavigate, be unable to manage flying wings, waste energy trying to do stuff, such that they pass out,
find the resonance field a nuisance and fly away from it, away from the bednet, out of the room, the opposite direction of a person with a resonant frequency broadcaster in their pocket (7-9¢ alibaba parts or a posh 11-14 cent usb rechargeable version,
compare the 19¢ laser pointer with metal tube and batteries), the resonant physical frequency of mosquitos bednet clip on could be usb rechargeable and have 4 1/10-1¢ piezoelectric vibrators that beam to different areas of the room, if feeling ultra
posh the 35-40¢ photovoltaic rechargeable lights pleasant form factor could be turned into a table piece or placed around the dwelling where the lights are brighter, a little usb thing could go into any usb thing they had (sometimes phones or better)
and draw electricity from that, another possibility is the highly sensible 49 cent version where the resonant piezopart stays inside, its higher capacity battery just pops off the side and pops onto a 35-40¢ battery recharger outside in the sun all day,
I don't think 8-14 hours of sun is going to make it piezo resonate for 72 hours but if it acoustically resonates 1 minute out of every 4 it might go three days between battery swaps, the outdoor solar power version uses two batteries, about, not so
cheaply, 19¢ 1800 mAh at alibaba, the two part two battery version is about 87¢, if is actually a thing that resonant physical vibrations transmitted through the air can neutralize a mosquito then the 87¢ of alibaba parts compares to the $1
insecticide mosquito nets at made-in-china.com or the $4 charity bednets that actually reach a recipient. There are a few ways to make it better or different, the piezoelements can listen for a loud simple sound like a clap from some person under their
mosquito net to, rather dubiously, turn it off for the night, it could sense dawn, and turn on automatically for 3-4¢ more, it might be able to sense evening and switch to every other minute mosquito neutralizing, going cheaper than the photovoltaic
pathlight its possible that mass production could use alibaba's 10¢/watt photovoltaics moving the outdoor recharger amount to 4-9¢ + 1¢ for a plastic outdoor dish and a 2¢ battery clip and wire, so the outdoor charger could be 9¢

Way to prevent more childhood and lifetime illness with transferring more maternal immunity to children in breast milk, babies get some immunoresistance to disease from their mothers it is possible that if tattoo removal laser at cofocalized depth of
nipple draws lots more immunocytes of various kinds to the nipple and breast coumadin, leaky capillaries, lots more immunochemicals get to breast milk, they could measure the benefit at groups of babies regarding things like resisting/not getting malaria,
diarrhea, other illnesses, test all four breast milk enhancers on lab mammals first, coumadin depot release airjection, cofocal lasered deep nipple tissue, thermo and sonic or even peltier wand coolsculpting disintegration of some lymph tissue near
underarms to flood the nursing mothers body with imunochemicals that benefit the baby's immunity to disease, also there may be some mRNA gene process that ramps up with nursing that causes greater transport of antibodies and maternal immune baby
benefitting chemicals, the thing is, what is it that causes that movement, then make a drug that upregulates it, and an epigenetic modulator drug that gives the baby even more immunity, another approach to increasing beneficial transfer of immune
components is possible variations in immune benefit from different galactogens, galactogens heighten milk output like rBts (dairy cow milk production amplifier), fenugreek and fenugreek chemicals and possibly some sex hormones, prolactin, and it is
possible to think there could be peptides or also mRNA drugs that could be new galactogens, so measure all these galactogens effect on reducing susceptibility to illness at lab mammals and humans, theres also a simple more might be better approach where
if the baby drinks more breastmilk she gets more immunity, i have no clue but a mother that feeds her baby on demand could also schedule regular times twice a day when she picked up the child and encouraged her to breastfeed, kind of different, but
plausible, at the developed world a woman on galactogens or who just had lots of milk could breast pump a quantity of milk, then the novel part affordably centrifuge her milk, save aside the fractions like the immunobeneficial fractions, then feed them
to her baby as a fluid concentrate

I dont know but i wonder if a layer of swirly iridescent oil (on gel) can lay at the base another layer of oil with a layer of polar fluid between them so that the iridescent swirls of the thin base oil layer is mostly undisturbed if the top layer is
touched, that would be an iridescent multihued kind of human body paint, the gel under the iridescent oil could be highly reflective, which would cause either subtlety or vividness of the iridescence

Sex pleasure toys, i saw an ad for a moving penile pleasure sheath that tubularly thrust itself back and forth on a penis, thinking of ways it could be even more pleasureable it occurred to me that i might have read that guys become especially hard and
rigid before they ejaculate, so what the autotravelling tubular thrusting pleasure sheath could do is have a penis rigidity sensor and notice when the guy became diamond hard and then speed up its thrusting to 111% to give the guy even greater pleasure,
at womens and girls sex toys like a clitoral suction womanizer it could use an invisible laser to follow her blood pressure and pulse and increase the contact surface area of the sucking toy, and even its suction as she was preorgasming and orgasming
turning the sex toy up to 111% at that experience

Previously thought of, it would be beneficial and feel great to have all sides and base of a bathtub have gentle heating elements so the sides of the bathtub feel great and the bathwater stays just just the temperature people like, i'm also a supporter
of soft white cushioning inside and outside of the bathtub so its ultra comfy, the inner surface meeting the water could be made of soft silicone, thick like corian so wear spots could just be lasered off, and lasered smooth, some people have sex in
bathtubs, and they would enjoy the softness and optional warmth. Similarly some people have sex like standing up sex in the shower, shower sex furniture already exists but its possible a gently warmed soft shower wall would benefit many standing
positions of shower sex

Doing mathematics outside the mirror, there might be things mathematicians can do outside of what jy said "its like slot cars" which might be interpreted as a high ratio of autosequentialism to new thing ratio, mathematicians could like the new part of
that ratio, possibilities include using numbers greater than 10 or, for what i am told is a different synchronizer 4, "we proved that for numbers >=11" then do actual math that omits eulers number, delta, phi both cases, gradient operator. The thing is
just to make new mathematics that function on their own outside these symbol glyphs mathematical meanings which i perceive have a slotcar channel group mind reverberation and newness excluding effect, there is an opportunity for mathematics to have wider
span doing new work without those symbol glyphs every day at 9:00 (17:00) a reminder to think of something new about mathematics reminds me to be simultaneously utilitarian Use(having fun)ful the thrills of math are wonderful and theoretical mathematics
are beneficial and useful as is applied math

I read about negative refractive index acoustic materials, some of these, made as actual polymer objects align fully with the math that predicts their behavior, such as an equation that creates a plan for a polymer shape that acoustically is - 30dB at a
frequency that is the middle of what looks like a normal distribution, another physical object vibration decreasing thing is the menger sponge as described at wikipedia, "Experiments also showed that for the same material, cubes with a Menger sponge
structure could dissipate shocks five times better than a cubes without any pores." so the math part of this fractal menger thing might be kind of like infinite volume or possibly also surface area, notably though, physical menger sponges for what might
be physics modulus reasons are a couple thousand times less vibration absorptive than a physical negative refractive index form, so, mathematically, could you write an equation for a fractal negative refractive index material that also has nonfinite
volume/surface but happens to be ultrasuperabsorptive of acoustics (also others) as well as its inverse that radiates with nonfinite volume/surface area
its also just a fun thing to notice that different nonfinite forms have different characteristics, thats already really hyper well known, so like, very ignorantly, could there be an equationally makeable radiant form (negative refractive index sponge,
but inverse, and radiant) that skips the "ultraviolet catastrophe" just because its fine tuned as to its reiterative topology with that precision, thinkishness and entertainment

Is it possible to reutilize the mathematics of negative refractive index, noting a reiteratively autosimilar version, to the chemistry of a menger thingish material called a zeolite, can a hyperfocusing of orbital charge or hyperabsorbing shape made out
of actual atoms be even better at catalysis than a synthetic zeolite, it could bring a lot of benefit to a lot of people, big computers and actual people could figure out different versions, like i think i read about molecular atom linked to other atom
vibrations, suggesting negative refractive index geometries and actual physical forms may be possible as the vibrations between atoms seem very likely to use wave equations that have nonnegative refraction

A topological form called a hyperbolic paraboloid looks like a nuclear energy plant cooling building with a neck, its possible that the venturi neck and the upper region of a cooling building has a geometry that could be used at other things and areas, a
really similar thing is a venturi neck rocket engine nozzle, so if you built the geometry right, possibly using genetic algoithms on lots of variations could you get more cooling from a cooling building, or more effectiveness out of a rocket nozzle if an
engineer programmer gave the genetic algorithm coanda gas enfluence surfaces or internal structures, the coanda effect can move more than 19 times as much gas, i think laminarly, which sugests, if there were a unlaminar planned mixing area the
possibility perhaps of spreading an attribute like warmth to more than an order of magnitude more area, creating greater efficiency and more carnot efficient cooler water for electricity generation, thorium nuclear reactors from what i have read have
strong value, perhaps they can omit water cooling buildings for their turbine fluids, that would be awesome, another use of the coanda enhanced cooling tower geometry that an engineer might find either comical or of utility is the chemical process
industries cogen might skip that though

This isnt quite a technology, but i may have read that during 2021AD lithium rechargeable batteries were not being recycled, its possible some microorganism or yeast could pick up and absorb all the Co and other nonlithium ions leaving lithium in the
nutrient medium, comparing the unknown volume of torula yeast grown on wood products industry wastes is/was 37¢/lb during the 20th century, and lithium is near $28/lb in 2022AD,although i think it can get cheaper from seawater extraction, suggests that
the physical growth chambers and food for lithium battery recycling yeast is very value effective, i just looked for it online and lithium concentrating bacteria have been found, so as bacteria go, depending on how fast people want their $, and the TVM
its possible heap leaching lithium and cobalt out of lined heap leachate ponds located near cheap hydrogen donor sources with lithium and possibly cobalt concentrating bacteria could be a thing, if they can find extremeophile bacteria that concentrate
lithium and cobalt they can do the leaching much more rapidly with thermal spring water, imaginably growing faster and extracting metal ions that are much more dissolved many times faster, also thermal spring water likely separates metal ions from
polymer much faster

Penis enlargement technology, the penis has receptors to human growth hormone and other growth factors, these receptors have epigenetics that can be modified to upregulate response to growth hormone and other tissue growth chemicals, it is beneficial at
all baby boys just after parturition to have an epigenetic modifier drug that increases tissue growth responsiveness to human growth hormone and other growth factors applied to the entirity of their penis utilizing an immediately absorbed liposomal and
autoelectrophoretic topical drug as well as a drug that attaches to the keratin of the skin with the chemical michael reaction which then gradually diffuses the penis size increasing epigenetic modifier drugs like RNA, or peptide drugs for several months,
the entirity of the penis including the head of the penis under the foreskin is beneficial to apply the ointment to.

Planting herbs and other light plants around a geocache and then at the actual geocache describe the plants and encourage people to sample them

Some Babies sleep especially well in cars vibrations, duplicate these vibrations at autoswaying cribs that are available

A particular shape of airplane might be able to make a sonic boom centered on and if possible with the majority of its energy at the planes body, notably the planes body has a bunch or purposed area of negative refractive index perfect absorption of wave
materials previously published as being - 30dB at a particular frequency, engineers could calculate how much of a sonic boom can be made to be preferentially dampened at the plane, and the dB of absorption used to neutralize it, and acoustics researchers
might be able to produce better negative refractive index materials to absorb it, the possible effect could, if it actually worked, be an airplane that was absent a hearable sonic boom on the earths surface. Also, active nodal sound cancellation
technology could reduce actual sonic boom acoustic things on the plane as well. Wikipedia says "experimental aircraft called the Low Boom Flight Demonstrator (LBFD), which will reduce the sonic boom synonymous with high-speed flight to the sound of a car
door" so if negative refractive index acoustic materials reduce that 11-15% further people might like that

Lactobacillus could be genetically engineered to make antigens to chemicals circulating in the human body that would otherwise reduce lifespan, i think some of those circulating chemicals are described at my paper notebooks. It is beneficial to
reengineer body and milk and cheese to make lactobacillus a spore forming bacteria.

Theanine is an anxiolytic amino acid, fluorinating it could make it even more calming.

Variation in longevity from castration

Cats like to chase laser pointer dots, round playballs the same color as the laser pointer could get pointed at with the laser and when the cat pounced on them they would suddenly light up with the laser pointers color and be visually similar for batting
and chasing, the human could turn off the laser pointer the moment the cat got the lit up ball, this way the cat actually succeeds in getting the dot

Two pps fingerpaint
Silver crayon resist on overhead transparency moire
Dutch your own cocoa with electrode water
3D printed microfeature dissectable school specimens are anatomically accurate and made of gel
Fun carolina biological supply school activity, get blue fluorescent protein, green fluorescent protein, and yellow fluorescent protein bacterial cultures and horizontally share their genes with calcium chloride to make new colors

Flavored braces rubber bands are published, rubber bands with fresh breath healthy teeth probiotics could be a thing


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