Category: Technology

The minibus taxi is ubiquitous in southern Africa. These vehicles are the backbone of the urban economy, providing affordable mobility for millions. In Cape Town, South Africa’s second most populous city, they are central to the transport landscape. Around two-thirds of the city’s public transport users rely on paratransit services (which respond flexibly to demand), […]

Andrey_Popov/Shutterstock.com Many households will recognise this familiar exchange. One person insists an object simply isn’t there: impossible to find despite what they describe as a thorough and highly competent search. Another walks in, glances briefly at the same spot and points to it almost immediately. “It’s right under your nose!” This frustrating (for both sides) […]

Lukas Jonaitis/Shutterstock Tiny organisms on the ground – bacteria and fungi – have a “superpower” that allows them to reach up into the atmosphere and pull down the rain, according to a recent study. To understand how a microbe can control a storm, we first have to look at how clouds become rain. High up […]

The Artemis II mission to the Moon is a voyage unlike any other in more than half a century. As the first crewed lunar flight since 1972, Artemis II marks the beginning of a new chapter in our relationship with the Moon. Nasa’s goal is to establish a sustained human presence on the Moon. As […]

ImageFlow/Shutterstock As a researcher investigating how electric brain stimulation can improve people’s powers of recollection, I’m often asked how memory works – and what we can do to use it more effectively. Happily, decades of research have given us some clear answers to both questions. Memory essentially operates in three stages, with different brain regions […]

We go through this every couple of years: Section 702 of the Foreign Intelligence Surveillance Act (FISA), which of Americans’ communications with foreign persons overseas is up for renewal. As always, Congress can reauthorize it with or without changes, or just let it expire. We know, we know, it’s a pain to have to do this every […]

Howard Pimborough/Shutterstock After months of relentlessly miserable weather for most of the UK, spring brings renewed enthusiasm for spending time outdoors hiking, wild swimming, paddling or on walks. Millions of people visit lakes and riversides every year. Yet with constant, and sadly necessary, reminders about sewage and water pollution, it’s not surprising that people are […]

Artist's impression of _Lystrosaurus_ embryo. Artist: Sophie Vrard, CC BY Between 280 and 200 million years ago, a group of animals evolved which would eventually give rise to mammals, including humans: the therapsids. They were first described more than 150 years ago, based on fossils from South Africa. Since then, many more fossils have been […]

Google moved up its estimated deadline for quantum preparedness in cryptography to 2029—only 33 months from now. That’s earlier than previous deadlines, and they proposed the new post-quantum migration deadline because of two new papers that comprise a big jump in the state of the technology. It’s ahead of schedule, but not altogether unexpected. Cryptographers […]

As long as people have had more than one purchasing option, they’ve been comparing those options and looking for bargains. Online shoppers are no exception; in fact, one of the potential benefits of the internet is that it expands our options for everything from car rentals to airline tickets to dish soap. New AI tools […]