Half-century-old sperm still up to the job
Researchers defrost sheep sperm frozen in the 60s, and successfully impregnate ewes. Andrew Masterson reports.
Life on Mars: the evidence assessed
In this issue – Life on Mars – Is the future battery powered? – Science communication in the age of fake news – How to make your garden bee-friendly – Roadblocks in the way of electric cars
issue
A terrible constancy: the physics of wars
Huge dataset reveals surprising, and predictable, similarities to armed conflicts of all sizes. Richard A Lovett reports.
Science history: the man whose balls didn’t explode
Leo Baekeland invented Bakelite, the salvation of America’s billiard players. Jeff Glorfeld reports.
Half-century-old sperm still up to the job
Researchers defrost sheep sperm frozen in the 60s, and successfully impregnate ewes. Andrew Masterson reports.
