Nuclear & Radiation Lab
Calibrate absorbed doses, evaluate safety equivalents, translate decay activity levels, and model electromagnetic ionizing attenuation through safety shielding.
Sievert ↔ rem (Dose Equivalent)
Convert between Sieverts (Sv), rem, millisieverts (mSv), and millirem (mrem) to quantify biological effects and occupational safety thresholds.
Eating one banana (contains radioactive Potassium-40).
Daily natural background radiation average per human.
Strict annual occupational limit for radiation safety workers (5-year average).
Absolute maximum occupational limit allowed in a single year.
Lowest annual level linked to clear statistical increases in cancer risk.
Severe acute radiation sickness (nausea, white blood cell reduction).
Extremely critical dose; fatal to 50% of individuals within 30 days.
Explore Additional Utilities
Exposure Triangle & F-Stop
Calculate absolute stop adjustments, exposure reciprocal tradeoffs, f-stop quotients, and ISO noise tradeoffs.
Roving weight ↔ finished yarn yardage estimate
Calculate expected yarn yardage from roving mass based on target spinning grist (yards per pound or run).
Pulp consistency — dry fiber % ↔ water ratio
Calculate dry fiber weight percentage in wet pulp slurry and water mixing dilution ratios for vat dipping.
Blanket size — horse length ↔ rug size in inches/cm
Calculate horse blanket (rug) sizing from point of shoulder to center of tail measurements in inches, centimeters, and UK/EU sizes.
SNR ↔ bit error rate — signal quality assessment
Analyze theoretical Bit Error Rate (BER) curves against Signal-to-Noise Ratio (SNR) for BPSK, QPSK, and QAM constellations.
Gather weight ↔ finished piece size estimate
Convert molten glass gather weight to finished dry piece volume and dimensions (hollow spheres, cylinders, bowls) based on thickness.
Coordinates to UTM/MGRS
Convert standard Latitude & Longitude decimal coordinates to UTM and military grid reference (MGRS) systems.
Royal jelly production — nurse bee count ↔ grams per day
Calculate potential royal jelly production based on young nurse bee count and queen cell graft rates.
Sidereal Time Converter
Convert between standard Solar Time and Sidereal Time based on your longitude.
Varroa mite load — alcohol wash count ↔ treatment threshold
Input alcohol wash or powdered sugar shake counts to analyze parasite load percentage and check treatment recommendations.
Inverter sizing — load watts ↔ VA rating needed
Analyze total AC continuous and surge loads to specify the ideal inverter Volt-Amp (VA) and wattage ratings.
Firewood volume — cords ↔ cubic meters ↔ cubic feet
Convert between cords, face cords, steres, and cubic volumes. Compute solid wood volumes, green or dry weight, and thermal BTU outputs.
Pregnancy Due Date & Milestones
Calculate estimated due date (EDD), gestational age, fetal development sizes, and trimester milestones.
Unix Epoch Converter
Convert Unix epochs (seconds/milliseconds) to human-eye standard DateTimes, and transform local dates to Epoch times.
Paint Coverage Calculator
Estimate the gallons or liters of paint needed based on area and number of coats.
Kite size — wind speed ↔ rider weight
Calculate the recommended kite size in square meters (m²) based on rider weight and wind speed.
Fuel Efficiency Converter
Convert between miles per gallon (mpg), liters per 100km (L/105km), and km/liter conversions.
Thermohaline density — temperature + salinity → seawater density
Determine seawater density and specific volume from water temperature and salinity using the UNESCO International Equation of State.
Chemical Solutions Concentration
Convert chemical solutions concentration (Molarity ↔ Molality ↔ PPM) and analyze mass ratios.
Freeness — CSF ↔ SR — pulp drainage rate
Convert between Canadian Standard Freeness and Schopper-Riegler drainage scales. Identify target paper grades.