Francisco Hernández En Salud y cuerpo humano

Why don’t we sneeze in our sleep?

During REM sleep (the phase where dreams take place), your muscles are paralysed so that you don’t thrash around and hur…
Francisco Hernández En Planeta Tierra

Have we made any difference to climate change yet?

Quite possibly – but not in a good way. The principal drivers of climate change are greenhouse gases that trap the Sun’s…
Francisco Hernández En Planeta Tierra

How big could an animal get?

Based purely on the physical strength of bone and muscle, it has been calculated that land animals of at least 100 tonne…
Francisco Hernández En Planeta Tierra

Can stars collide?

In general, distances between stars are so vast that it is unlikely that any two will ever meet and collide. But in some…
Francisco Hernández En Planeta Tierra

Could we grow plants without sunlight?

YES. At the Stockbridge Technology Centre in North Yorkshire (pictured), scientists are using the principle that plants …
Francisco Hernández En Planeta Tierra

Did life on Earth come from comets?

The mere mention of comets crashing into the Earth is likely to bring to mind images of mass extinction and the end of d…
Francisco Hernández En Productos

Out with the old...iPhones? 4 ways to reuse, resell, recycle

Each year, Apple dazzles its devoted fans with faster, sleeker, more powerful iPhones with better cameras and a bevy of b…
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