A diaper or pad outercover with no plastic film has to hold back urine, stool and menses at 62 millibar of pressure, hide stains, and stay soft, quiet and breathable, for under seven euro cents per square metre. The fiber density, extra fine-fiber layers and coatings that stop liquid and block light also stiffen the web and raise its cost.
Read solutionsLITE engine · preliminaryGrids with more wind and solar must handle abrupt power swings from electric arc furnaces and large hydrogen electrolyzers with less stored energy in spinning generators to cushion them. A single furnace can change its demand by 8–12 megawatts per second, causing voltage flicker, frequency deviations and electrical distortion that can affect nearby users. Existing voltage-compensation equipment cannot supply the extra energy needed, while large battery systems can cost tens of millions of dollars. The challenge is to combine energy storage, controls that establish grid voltage and frequency, and adjustments to industrial demand to keep power within quality limits. Any solution must respond to unpredictable loads, fit existing industrial sites and remain affordable as renewable generation grows.
Read solutionsLITE engine · preliminarySmall AI models on devices currently communicate with much larger cloud models through text, adding hundreds of milliseconds per exchange and losing information as they convert internal numerical representations into words. The goal is a lightweight, trainable translator that sends those representations directly as a compact numerical message, retaining at least 90% of text-based task performance with much less delay and bandwidth. The models encode information differently, so the translator must bridge those differences within the device’s tight computing and memory limits. It must also adapt across tasks and model families without a separate, costly translator for every pair. Compressing messages too far can abruptly erase details the cloud model needs, especially spatial and visual information used in robotics.
Read solutionsLITE engine · preliminaryA crypto arbitrage system must decide in under 100 milliseconds whether to buy an asset on one exchange and sell it on another, with positive expected profit after fees and worse-than-quoted execution prices, even for small trades. Quotes arrive with different, unpredictable delays, so the apparent price gap may never have existed at the same moment. Available orders can disappear before execution, and the buy and sell execute independently: if only one fills, the trader is left exposed to price changes. Checking more data reduces false signals but takes time during which other traders can capture the gap or prices can converge.
Read solutionsLITE engine · preliminaryA propane grill left running wastes fuel and poses a safety risk. The goal is a tool-free, clip-on device that uses grill heat to alert someone indoors to return and shut off the tank valve, without batteries or any connection to the gas line. It must retail below $30, with roughly $8–12 available for parts. The hard part is converting enough heat into a noticeable alert while keeping the power source, housing and attachment hardware within that budget and tolerating surface temperatures up to 350°C. It must also distinguish a forgotten grill from normal cooking, so users get reliable warnings without nuisance alarms.
Read solutionsLITE engine · preliminaryRetrofitting retired oil and gas wells could avoid the $5–15 million cost of drilling each new geothermal well. The goal is a retrofit costing less than $1.4 million per well that can deliver sustained heat from a substantial share of the millions of existing wells. Circulating fluid through these wells carries underground heat to the surface, but faster circulation extracts more heat at a lower temperature, which can limit its usefulness for industry or electricity generation. Extracting heat too quickly also cools nearby rock faster than heat flows back in, reducing output over a 20–30 year project. Wells differ widely in depth, temperature and condition, so developers must adapt retrofits or select suitable wells while keeping repairs to corroded casing and damaged cement affordable.
Read solutionsLITE engine · preliminaryPeople should be able to transfer digital yen between nearby devices during multi-day network outages, with payments final on receipt, as with cash. But people can copy digital money and spend it twice when neither device can check the central ledger. Tamper-resistant chips can enforce deletion of spent tokens before confirming payment, but stronger hardware costs more, and attackers who defeat widely used chips could counterfeit money at national scale. The design must limit fraud without excluding older people, disaster victims or people without smartphones. It must also protect privacy, meet anti-money-laundering rules and safely reconcile payments when devices reconnect, despite unavoidable trade-offs: fully preventing offline double-spending means giving up recovery of funds from lost devices, while tight payment limits reduce usefulness during prolonged outages.
Read solutionsLITE engine · preliminaryScouts matching hundreds of Japanese startups with U.S. partners each year need to find uses for their technologies beyond familiar industries. Sector labels, keyword searches and personal networks miss potential connections: a startup’s micro-needle drug-delivery technology might help an agricultural biotech firm inject nutrients at a precise depth in soil. Finding these connections means comparing what technologies do with what partners need, across languages and industries that use different terms for the same mechanism. Millions of possible pairings exceed what scouts can check manually, but broader searches also produce more false matches that require technical judgment to reject. Scouts need credible matches with clear explanations they can assess and act on in minutes, while remaining the trusted intermediaries who make introductions.
Read solutionsLITE engine · preliminaryMobile camera sensors need at least 100 dB of dynamic range in a single exposure to capture deep shadows and bright highlights, with pixels no larger than 2 µm. The leading approach, LOFIC, stores excess charge from bright light in an added capacitor, which takes space away from the light-sensitive area. Switching between low-light and bright-light readouts leaves uncancelled thermal noise, causing an 8–12 dB drop in signal-to-noise ratio and visible noise or banding at intermediate brightness levels. Adding more readouts can soften that drop but increases power use and data volume. Designers must eliminate this noise band while preserving shadow sensitivity, mobile battery life and compatibility with existing high-volume stacked sensor manufacturing.
Read solutionsLITE engine · preliminarySurgeons controlling a robot thousands of kilometers away need sub-millimeter accuracy and force feedback precise enough to distinguish layers of tissue. Long-distance network delays, unpredictable changes in delay and seconds-long outages can cause instrument oscillation or dangerous motion; methods that stabilize control can blunt the surgeon’s sense of touch. Round-trip delays above about 100 milliseconds already impair coordination, yet intercontinental signal travel alone can exceed that. During an outage, replaying old commands or simply freezing instruments can injure tissue as it moves with breathing or deforms under pressure. The challenge is to keep procedures going safely as connections degrade, with useful force feedback and predictable, safe instrument behavior, on the existing robot platform and within Japanese regulatory constraints.
Read solutionsLITE engine · preliminaryThe challenge is to reduce saltiness in clear, colorless, unflavored electrolyte drinks without lowering the sodium and chloride needed for rehydration. The drinks must deliver roughly 160–270 mg of sodium per serving, but dissolved sodium and chloride trigger salt taste; binding or trapping these ions could reduce their availability to the body. Alternative salts, flavor masking, sweeteners, acids and encapsulation have already failed taste or beverage-format requirements. A suitable ingredient or process must demonstrate saltiness reduction in plain water, preserve clarity and electrolyte availability, and have a route to food-safety acceptance under the Generally Recognized as Safe (GRAS) framework.
Read solutionsLITE engine · preliminaryMiners need an economical way to extract copper from low-grade chalcopyrite ore while using less energy and water and producing less waste. Chalcopyrite, the mineral containing about 70% of remaining copper reserves, forms a surface layer during chemical leaching that blocks the electron transfer needed to dissolve copper; conventional heap leaching typically recovers less than half the copper in primary sulfide ores. Fine grinding or high-temperature pressure treatment can overcome this barrier, but add substantial energy and equipment costs, especially for ore containing just 0.3–0.5% copper. The challenge is to extract copper selectively at ambient temperature and pressure, fit existing mines’ heap-leach and copper-recovery equipment, and scale to more than 100,000 tonnes of copper per year.
Read solutionsLITE engine · preliminaryDirect air capture needs reusable materials, called sorbents, that bind CO2 strongly enough to extract it from air containing just 0.042% CO2, yet release it with little energy. Strong binding makes release energy-intensive, and conventional heating cycles also heat the surrounding equipment and can damage sorbents exposed to oxygen and humidity. Solid-sorbent systems currently consume 2–4.5 gigajoules per tonne of CO2; regeneration accounts for most of that energy. Alternative release methods, such as electricity, light or moisture changes, still need proof of durability and CO2 purity. The goal is to release CO2 using less than 2 gigajoules per tonne without weakening capture, while keeping the sorbent effective for more than 10,000 cycles in real outdoor air.
Read solutionsLITE engine · preliminaryU.S. tree nut handlers can kill insect pests by keeping oxygen below 1% inside sealed liners for days to weeks at suitable temperatures. They need a commercial system to measure oxygen without piercing the liner, detect seal breaches, and create tamper-evident records that inspectors can audit at every custody transfer, from packing house to import port. Without that proof, importing countries continue to require chemical treatments such as methyl bromide instead of accepting low-oxygen treatment. Optical oxygen sensors already work through some films, but deploying them across millions of packages means cutting sensor costs, reading through the chosen liner, and combining oxygen barriers with recyclable packaging.
Read solutionsLITE engine · preliminaryThe challenge is to estimate continuously how much more braking, cornering or acceleration force each tire can deliver before sliding, using existing wheel-speed and vehicle-control signals without adding sensors. Current model-based methods generally need tires to use more than 30% of their available grip before they can estimate the limit reliably, but everyday and autonomous driving usually stays below that level. During gentle driving, surfaces with very different grip limits can produce similar signals, while tire wear, temperature and changes in load further blur the differences. The software must separate these effects in noisy data, distinguish at least four grip levels and update each wheel’s remaining grip estimate fast enough for autonomous braking and path planning, before a wheel starts to slide.
Read solutionsLITE engine · preliminaryCooling accounts for 30–40% of data center electricity use. Operators need to cut that cooling demand and total facility energy for the same computational workload on standard hardware, without making sensitive data easier to infer. Processors adjust voltage and clock speed to control chip heat and power, but these adjustments can turn data-dependent power use into measurable timing differences; researchers demonstrated cryptographic key theft this way in Hertzbleed (2022). Restricting clock speeds limits energy-saving options, and attackers can still exploit timing differences caused by power-dependent decisions about where tasks run. The challenge is to manage processor power or remove heat more efficiently without creating or widening leaks through timing, clock speed, power use or task scheduling.
Read solutionsLITE engine · preliminaryConfectionery manufacturers need a cocoa butter equivalent made in Europe or North America from regional feedstocks, without tropical palm or shea components. It must stay firm at room temperature and melt sharply near body temperature. Reproducing that behavior requires precise control over both the mix of fat molecules and the arrangement of fatty acids within them; small deviations can make chocolate soft or waxy, or cause problems when blended with cocoa butter. Current regional production methods struggle to deliver that precision at an affordable cost and at least 1,000 tonnes a year. Manufacturers also need a process without hydrogenation and a clear route to EU regulatory approval.
Read solutionsLITE engine · preliminaryThe task is to develop automotive motor designs that deliver 30 kW of mechanical power from a 48 V supply, without rare-earth magnets, while operating at 125°C ambient temperature. That output requires more than 625 A once losses are included, and winding heat rises with the square of the current. With winding insulation rated to 180°C, designers have only 55°C of temperature rise available to handle that heat. Replacing rare-earth magnets typically requires extra electrical current or a larger motor, so each design needs a credible way to remove heat and must suit automotive manufacturing.
Read solutionsLITE engine · preliminaryA lot zoned for housing in Pittsburgh or Allegheny County may still be uneconomic to build on once developers add up the costs of steep slopes, old mines, sewer limits and contamination. Developers and planners must piece together separate public datasets and local regulations, while existing tools do not calculate how these constraints combine. They need to enter a parcel ID and get a feasibility score they can compare across sites. The challenge is to keep that score simple without hiding the details: each component must link to its regulation, dataset or assumption, with clear flags for conditions that need human review or site investigation.
Read solutionsLITE engine · preliminaryPittsburgh neighborhoods need a clear way to compare duplexes, apartments and other housing options across seven factors: household demand, site and zoning constraints, affordability, displacement risk, infrastructure capacity, access to jobs, transit and schools, and carbon emissions from construction, energy use and transport. Adding denser housing can lower emissions per home but raise displacement risks in neighborhoods with many low-income renters. Today, decision-makers often resolve these tradeoffs in spreadsheets or public meetings without recording how they weigh competing priorities. The challenge is to build a working prototype that scores housing options for real neighborhoods, shows uncertainty and lets residents, planners and developers compare scenarios with adjustable priorities, while keeping evidence separate from policy choices and assumptions.
Read solutionsLITE engine · preliminaryPittsburgh and Allegheny County need one interactive tool to connect housing construction, rents and household moves, from regional trends down to individual buildings where the data allow. Users must currently piece together permits, property records, federal surveys and tenant reports. The same property can appear under different addresses or identifiers, while daily records and years-old survey averages cover different periods and geographic areas. Tenant reports can reveal actual rents paid and maintenance problems, but address-level detail can expose residents; protecting them means withholding some detail. At every level of detail, users need to see each number’s source and age, uncertainty in property matches and estimates, and where data are missing or withheld for privacy.
Read solutionsLITE engine · preliminary