Titanium dioxide: where it comes from, and why Europe took it out of food
Titanium dioxide starts as black mineral sand and ends up in paint, sunscreen and sweets. Where it comes from, why the EU banned E171 and what is unclear.

a slow notebook on technology, food & power
Titanium dioxide starts as black mineral sand and ends up in paint, sunscreen and sweets. Where it comes from, why the EU banned E171 and what is unclear.
Books about bees for every kind of reader: native bees, how a honeybee swarm decides, two manuals for a first hive, and the case on pollinator decline.
Eight environmental books and nature books worth reading, from Silent Spring and A Sand County Almanac to fungi, animal senses, extinction and a novel.
What a new coating on old kitchen cabinets can and can't promise, how to test the claims, and what to ask a painter before you sign.
The CRISPR acronym means Clustered Regularly Interspaced Short Palindromic Repeats. What each word describes, and how bacteria gave us gene editing.
Seven technology books for general readers: what media do to attention, how chips became geopolitics, and who gains when new tools arrive.
Fertilizer is three businesses: an energy business, a mining business and a near-cartel. Who supplies each nutrient, and what really moves the price.