Dyson's new PencilVac is probably the weirdest-looking vacuum I've seen. There's no visible motor or filter section, nor any obvious battery. It's just one long handle with an odd-looking floorhead at ...

I’ve been testing robot vacuum cleaners since they were nothing more than dust-pans on wheels. Thankfully, technology has improved in leaps and bounds, and today’s best robovacs are a world away from ...

Abstract: In this letter, a novel and effective method for non-Foster active absorber with ultralow profile and wide absorption band is proposed. The three-layer absorber consists of a square loop ...

Abstract: In this letter, a novel, flexible inkjet-printed metamaterial absorber is proposed. The unit cell consists of a miniaturized Jerusalem-cross resonator and a completely conductive bottom.

CaII 3934,3969 absorbers, which are likely to be a subset of damped Lyman alpha systems, are the most dusty quasar absorbers known, with an order of magnitude more extinction in E(B-V) than other ...

Dust mites in the air can cause allergy symptoms like sneezing and a runny nose. Histamine from dust allergies can make the nose itchy and cause postnasal drip. People with asthma may have symptoms ...