Abstract: Hollow-core photonic bandgap fibers (HC-PBFs) demonstrate exceptional performance with high damage threshold, low nonlinearity, low thermal sensitivity and ultralow bending loss. However, ...

I don’t love planks. There I said it. Isometric exercises (or holding one position) are not my thing. I prefer other types of core exercises (hi dead bugs, bicycle crunches, inchworms ...

I don’t love planks. There I said it. Isometric exercises (or holding one position) are not my thing. I prefer other types of core exercises (hi dead bugs, bicycle crunches, inchworms ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Some abs exercises can get a little tedious the more you do them, including planks.

Some abs exercises can get a little tedious the more you do them, including planks. Thankfully, there are a few ways you can get a good abs pump and continue to develop core muscle without setting ...

Tired of the same old plank routine? Switch things up with these powerful plank alternatives that target your core in new ways. Whether you’re looking to strengthen, tone, or challenge yourself ...

Net zero is a core plank of the programme, with $390bn earmarked to tackle climate change and $60bn being spent on clean energy initiatives, including the promotion of solar and wind power.