Convert Microcenturies to Attoseconds
Convert Microcenturies (µcy) to Attoseconds (as) instantly and accurately.
Conversion Formula
as = µcy × 3.155760000e+21
About Microcenturies
A microcentury (µcy) = 10⁻⁶ of a Julian century = 3,155.76 s ≈ 52 min 35.76 s. Popularised by Richard Feynman, who told audiences a one-hour lecture was 'approximately one microcentury'. An 87-minute film ≈ 1.65 microcenturies. No formal SI recognition, but a favourite pedagogical example of SI prefixes applied to large bases. 1 µcy = 3,155.76 s = 52.596 min.
About Attoseconds
An attosecond (as) = 10⁻¹⁸ s - the timescale of electron dynamics in atoms. The Bohr-model orbital period in hydrogen is ~152 as. Electron tunnelling through atomic potential barriers takes a few hundred as. The 2023 Nobel Prize in Physics (Agostini, Krausz, L'Huillier) honoured methods for generating sub-100 as pulses via high-harmonic generation in Ti:sapphire lasers. 1 as = 10⁻¹⁸ s = 1,000 zs.
Quick Reference Table
| Microcenturies (µcy) | Attoseconds (as) |
|---|---|
| 1 µcy | 3.156 × 1021 as |
| 2 µcy | 6.312 × 1021 as |
| 5 µcy | 1.578 × 1022 as |
| 10 µcy | 3.156 × 1022 as |
| 25 µcy | 7.889 × 1022 as |
| 50 µcy | 1.578 × 1023 as |
| 100 µcy | 3.156 × 1023 as |