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Franz Reichelt’s Eiffel Tower Jump: The Parachute Was Big Enough

Science

Franz Reichelt's Eiffel Tower jump killed him in 3.4 seconds. His parachute suit was close to the right size. The way it opened never could be.

19 Sep 202610 min read

Run the numbers

Put your own numbers in and get a sourced answer, not just an explanation. No signup, ever.

The energy-infrastructure mapEvery power plant of 50 MW or more in the WRI database, plotted and searchable by fuel and capacity.10,701power plants

The energy-loss calculatorParticle, material and thickness in. Mean loss, most probable value and straggling out, plus electron-hole pairs per micrometre in silicon.4particle types modelled

Reference tools inside the articlesCalculators built into the reference posts themselves, worked against the numbers already on the page. Start with the Landau distribution.4articles, so far

Inside the machines

Semiconductors & Electronics

The materials, power and physics behind the technology we depend on.

2D Semiconductor Radiation Tolerance Beats Silicon in Space

Semiconductors & Electronics

29 Aug 20267 min read

Intel Glass Core Substrate: Why It’s Not Shipping

Semiconductors & Electronics

15 Aug 20267 min read

3D Chip Stacking’s Thermal Limit Splits Cache From Cores

Semiconductors & Electronics

25 Jul 20267 min read

A deeper understanding

Quantum Physics

Why the LHC Is Colder Than Outer Space, On Purpose

Particle Physics

5 Sep 20266 min read

Quantum Error Correction Threshold Theorem: Why Scale Helps

Quantum Physics

22 Aug 20267 min read

One-Dimensional Anyons: Breaking Statistics Without Braiding

Quantum Physics

8 Aug 20267 min read

Primordial Black Hole Candidate S251112cm: Real or Noise?

Cosmology & Astrophysics

1 Aug 20267 min read