Fun Friday – Static Electricity

Fun Friday – Static Electricity

What is Static Electricity?

Static electricity is a charge that builds up when two things are rubbed together. Matching charges of static electricity push each other away (repel) while opposite charges attract each other.

Let’s Learn More!

Everything is made up of atoms.  An atom

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Can You Name This Creature?

Can You Name This Creature?

Week 8th to 14th July 2013

This week’s Mystery Creature comes courtesy of my three young children.  They found this little guy while out bug hunting in the garden and took him in to identify him.  They took this photo of him on my microscope at a 20X amplification; it was a tricky shot to get as he kept scampering out of view (we are not used to viewing live insects under our microscope)! My three Junior Scientists identified it pretty quickly with help from the internet … do you have any ideas what it is?
Sparkly toes

Sparkly toes

My three year old got up from kneeling the other day and started to wiggle and jiggle a little, when I asked him if he was OK he said…

…”Mummy, I’ve got sparkly toes!” That has to be the cutest description of pins and needles I have ever heard.  He looked at me a little confused and wanted to know why his toes were sparkling… I gave him a simple explanation but even as I was talking… I could feel a blog coming on!

So what are pins and needles and why do we get them?

Parasthesia is the medical term for pins and needles.  The pins and needles that most of us experience, just as my son did, are a result of pressure on a nerve, restricting its blood supply.  This pressure is usually a temporary pressure caused by us leaning on a limb or part of the body in an awkward way. This pressure on the nerve restricts its supply of blood and therefore prevents it from “charging up” and “firing off” in the usual manner.  The signalling pathway gets interrupted resulting in the nerve firing off incorrectly or at a modified rate… and we feel this as a fuzzy, tingling, spiking sensation.  If the nerve is suppressed for too long its signalling function stops all together and the area becomes numb.  These sensations can usually be quickly and easily reversed by simply changing position and moving the area that is affected, thereby returning blood supply to the nerves.

A closer look

So now we have a general understanding we need to know how nerves operate to explain

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The Big Rescue

There was a MAJOR drama here on Saturday morning!  I was just having my morning cuppa when my son starting banging at the window and pointing up to the House Martins’ nests just above it.  We knew straight away there was a problem.

All that remained of two House Martin nests

These House

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