The Science Teacher

Today is a special day!

❄️ Today, December 21, Marks the Winter Solstice — the Official Start of Winter in the Northern Hemisphere!

It’s the shortest day and longest night of the year in the North, as the Sun reaches its lowest point in the sky.

The GABA-A receptor is a protein complex made of five subunits that acts as the brain's main brake, receiving inhibitory signals from neurons. When the neurotransmitter GABA binds, it opens a channel, allowing chloride ions to flow into the cell and quiet down its electrical activity.

On the first day of Newtonmas, my prof did sing to me..