In the water molecule, the oxygen and hydrogen atoms share electrons in covalent bonds ... Electrons can be shared unequally in a molecule, creating a polar molecule. Opposite polar ends of molecules ...

Along with the Earth’s magnetic and energy fields, there is a third energy field and Adarsh tells you all about the discovery ...

THE Christmas season is almost upon us, and there’s no better way to spread holiday cheer than a festive day trip with family ...

The ball-and-stick and first space-filling model show that sucrose is a large molecule made up of carbon, oxygen, and hydrogen. Sucrose has many O–H bonds which are polar. These polar areas are shown ...

This stunning light show was triggered by a G4 geomagnetic storm caused by a plume of solar plasma ejected from the sun.

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戊烯基是一种疏水的五碳片段，在生物化学和天然产物化学中广泛存在。具有广泛药用价值的天然产品——多环聚戊烯基酰基间苯三酚（PPAPs），一直是多个合成研究的目标，但不对称地引入戊烯基已被证明是一个持久的挑战。 Ng等人报道了一种铜催化的方法，使不饱和酮戊酰化，从而获得具有高对映选择性的PPAP。该方法的关键是一种有机硼酸盐试剂，硼在一个有点违反直觉的位置。

Photosynthetic habitable zones' could exist beneath radiation-filtering ice on Mars, offering scientists another region in ...

Toxic trace elements such as lead, mercury, arsenic, and cadmium naturally occur in small quantities in coastal seas. However ...

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The moon landing missions planned to take place in the next few months are the Firefly Aerospace Blue Ghost, the Intuitive ...