When the head is allowed to get cold and the body is well insulated, the body's core temperature drops rapidly due to the circulation of blood.

当身绝得很好只把头露出来时候，身核心温度会因为血液循环而急剧下降。

It gets as hot as 27 million degrees Fahrenheit in the Sun's core.

太阳核心温度高达 2700 万华氏度。

The sun's core is about 27 million degrees Fahrenheit or 15 million degrees Celsius.

太阳核心温度差不多有两千七百万华氏度，相当于一千五百万摄氏度。

That will bring your core temperature down pretty quickly.

这将使你核心温度迅速下降。

But if the star has more than about 8 times the Sun's mass, it can create temperatures in its core in excess of 500 million degrees Celsius, and then carbon will fuse.

但如果这颗恒星质量超过太阳8倍，它核心温度就会超过5亿摄氏度，然后碳就会发生聚变。

Coupled with the sudden relaxation, courtesy of the parasympathetic system, the body can experience chills because it cools too fast and is not used to the lower core temperature.

再加上副交感神经系统突然放松，身会感到发冷，因为它冷却得太快，不习惯较低核心温度。

Stars, as you probably know are enormous fusion powered convection ovens that burn so hot at their cores that very large atoms can smash together and form even larger atoms.

正如你可能知道那样，恒星是巨大聚变动力对流炉，其核心处燃烧温度很高，以至于非常大原子会分裂并形成更大原子。

When smaller stars collapse into neutron stars though, the newly formed neutron core has a temperature approaching 100 billion degrees which is 6666 times the temperature found inside the sun's core.

不过，当较小恒星坍缩成子星时，新形成子星核温度接近 1000 亿度，是太阳核心内温度 6666 倍。

First, the blood vessels in our skin narrow, allowing the body to maintain its core temperature by reducing the blood flow on its surface, known as Vasoconstriction.

首先，我们皮血管变窄，允许身通过减少表面血流来维持核心温度，称为血管收缩。

The first is that a fever raises the core body temperature, and it makes neurons more excitable than usual, meaning that action potentials are more likely to happen.

首先，发热导致了身核心温度升高，这会使神经元比平常更容易兴奋，即更容易产生动作电位。

Their cores are much hotter, because the gravity crushes things down, and temperature goes up many many millions of degrees hotter than inside the sun.

而它们核心温度更高，因为引力坍缩作用，它们核心温度要高于太阳内部温度几百万度。

That is a decrease in temperature in your core and your muscles would then start to shiver even more because now you got colder.

这是你核心温度下降，然后你肌肉会开始颤抖得更厉害，因为现在你变得更冷了。

And also so that you can rug up on the downhills and so that you don't get too cold by keeping your core temperature stable.

你可以在下坡时候穿回衣服，通过保持核心温度稳定，这样就不会太冷了。

You can also drink cold water. That will bring your core temperature down pretty quickly. Be careful not to guzzle a huge amount, though.

你也可以喝冷水。这会让你核心温度快速下降。不过，要注意不能猛喝。

Piling on top of one another, or on a warm rock's surface, helps to keep the turtle's core body at a healthy temp.

把乌龟堆叠在一起，或是将其放在温暖岩石表面，有助于海龟保持身核心温度。

They also shade the cactus and reflect the sun's rays, reducing the plant's core temperature during the heat of the day.

它们同时为仙人掌制造阴影并反射太阳光，以此在炎热白天里降低仙人掌核心温度。

But before you throw your woolly hats in the bin, there's another consideration to bear in mind; one that concerns your core temperature - that's the internal temperature inside your body, including the blood, heart, and other vital organs.

但是在你把羊毛帽扔到垃圾桶里之前，还要记住另一个考量；跟你核心温度 —— 即你身内部温度，包括血液、心脏和其它重要器官 —— 有关。

So that they can still get some of the sun, but any extra heat that might be a little dangerous to their body temperature to their core temperature, they will be able to dissipate into the water.

这样它们仍然可以获得一些阳光，任何可能会对它们温和核心温度造成危险多余热量，它们能将其消散到水。

Down at the sun's core, the temperature can reach an even more insane 15 million degrees, but that's nothing compared to the heat generated from the blast of a supernova.

在太阳核心，温度可以达到更疯狂 1500 万度，但这与超新星爆炸产生热量相比，根本不值一提。

In the core of a star, pressure and temperature are high enough that atomic nuclei can get squeezed together and fuse.

在恒星核心，压力和温度足够高，原子核可以挤压在一起并发生聚变。