Dr. Helena Ortiz
Featured contributor PhD Applied Physics; former research associate at a national metrology lab.

Dr. Helena Ortiz

Senior Reviewer, Science & Engineering

0 calculators 0 articles Member since Jun 2026
Physics / Electricity

Inductor Energy Calculator

Compute the energy stored in an inductor from its inductance and the current through it, using E = ½ · L · I².

basic
17,530 4.5 1 min
Physics

Drake Equation Calculator

Compute the Drake equation: N = R* · f_p · n_e · f_l · f_i · f_c · L. Each factor represents a successive filter from "s...

basic
18,195 4.1 1 min

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Reviewed by Dr. Helena Ortiz

These calculators were technically reviewed by Dr. Helena Ortiz for accuracy.

Physics / Electricity

Capacitance Calculator

Compute the capacitance of a parallel-plate capacitor from plate area, plate separation, and the dielectric constant.

basic
12,524 4.1 1 min
Chemistry / Solutions

pOH Calculator

Compute pOH from hydroxide ion concentration and the matching pH at 25 °C.

basic
18,221 4.2 1 min
Ecology / Carbon Footprint

Carbon Footprint Calculator

Estimate your annual personal CO₂e footprint from home energy, driving, flying, and diet — with adjustable emission fact...

Featured basic
15,825 4.9 1 min