Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

For decades, many runners, and even coaches, have assumed that being a runner meant never walking during a training run or race. Even the most accomplished runners would apologize when they walked at ...

If you’ve lived in San Diego for even a short period, then you’re probably familiar with the dips and bumps on State Route 52. This decade-old problem makes for a dangerous and uncomfortable ride ...

Although mnemonic devices far predate the written word, both Cicero and Quintilian name Simonides of Ceos (c. 556-468 BCE) as the first teacher of an art of memory. Simonides is perhaps best known for ...

A knowledge-based intelligence method for controlling segment floating based on adjusting and optimizing shield tail grouting parameters was proposed. Based on prior knowledge in controlling segment ...

The internet became a thing just over four decades ago, and has now transformed into an essential service that connects billions of people worldwide. Every major industry, including healthcare, ...

Grouting is a widely used construction technique that involves injecting stabilizing materials into soil to ensure structural stability, which is especially beneficial in earthquake-prone regions. Now ...

Tile offers a beautiful, durable option for floors, walls, and backsplashes. You need to use grout when installing tile to make the project last. Not only does it ...