纪录片《全球怪象》 第28期：紫外辐射（在线收听）

The Sun had a secret rhythm.

太阳有一个秘密的周期

As well as an 11-year time frame,

在11年周期循环的同时

it also operated on a much longer timescale -

它还有一个更长的周期

the grand solar cycle,

大太阳周期

averaging every 300 years or so.

平均大概三百年为一个周期

And Mike Lockwood's ground-breaking research

迈克·洛克伍德开创性的研究

helped explain what was happening in the 17th century.

帮助解释了17世纪发生的事

Because that was a time of a grand solar minimum,

因为那时是大太阳周期的极小期

where UV light would be at its lowest.

紫外辐射降到最低

Not just for years,

不仅仅持续几年

but decades.

而且是几十年

And that would create the conditions to allow the wind

创造了条件

to blow from the east -

让东风吹到英国

leading to frost fairs

导致了霜冻嘉年华

and the production of beautiful violins.

以及完美的小提琴被制作出来

Could that help explain the recent cold winters?

这可以帮助解释最近的寒冬吗

Have we reached another grand solar minimum?

我们到了另一个大太阳周期的极小期吗

The answer was a convincing

答案是确定的

No.

不