Daily briefing: The return of the snail — the month’s best science images

· · 来源:user资讯

Read Mashable's review of One Battle After Another.

Locations: US,UK,NL,JP,HK,AU,SE,NO,AT,CH

lower。业内人士推荐PDF资料作为进阶阅读

At the heart of the KEF Muo rebuild is a new racetrack-shaped mid/bass driver (2.5 × 5 inches) that has been paired with a 0.74 inch (19mm) tweeter and driven by a total of 40 watts of Class D amplification (30 watts for lows, 10 watts for highs.) The elongated oval shape (hence why they call these “racetrack” drivers) allows for more internal volume and greater efficiency. Combined with KEF’s own P-Flex Surround technology—a pleated structure borrowed from their subwoofers that reduces internal air pressure—it should get deeper, more controlled bass despite the tiny enclosure size.

In her spring statement the chancellor argued for fiscal discipline. That’s understandable. The OBR says borrowing will fall and that the “headroom” against her self-imposed rules has increased. Her message was that Britain needed “stability”. The logic is that discipline reassures markets, and that keeps borrowing affordable. But markets constrain the UK only insofar as its institutions let them. If energy prices spike, the economy suffers a drop in real income. The question is: who soaks up that loss? Households, firms or the state, via higher deficits? Privileging fiscal credibility might signal that she prefers households to absorb the shock rather than the state.

Meta 集齐三大芯片