Believing is Not Seeing: Visual Science and Reality part 2

Let’s get this straight from the off. You don’t see nearly as much as you think you do. In fact you barely see anything. You may think this is an exaggeration but I’m being serious. And I’ll explain why.

Before we start you should read the first post in this series.

Firstly you don’t see smooth motions in the world around you. The neurons in your eyes can’t work that fast (more…)

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Believing is Not Seeing: Visual Science and Reality part 1

I’ve had to break this post down into two posts as it got a bit long.

So before I start on this bit I want everyone reading to take part in a very small experiment:

Put a hand over your left eye so you can’t see anything with it. Now lean back from the computer screen and stare at the cross on the left in the image below.

As you stare at the cross, move closer to the image (you can get pretty close).

(more…)

Complicatedly Colourful: Vision Science

The picture I’ve put up is one of a mouse retina. The green dots are cells that have been stained with a fluorescent dye. I’m showing you this partly to show you how many cells there are in a retina (only some of the cells are stained, and humans have even more than mice). It’s also partly to (more…)

Sight: The Science of Vision

Before I start I’m going to give you a couple of references to some relevant posts I have already made/reblogged:

The basics of sensory science

The causes of sensation – very relevant to this post

A reblogged think on colours and some other issues

If anyone still wants to they can vote in the poll on the sidebar!

OK let’s get started. (more…)

What’s Your Favourite Sense?

I’ve added a new poll in the sidebar so people can vote for their favourite sense.

I thought it might be interesting to see which ones people can’t live without. (bear in mind all those who live without some of these senses already)

The Brain and Reality

Prepare yourself for a weird post.

Forget everything you know about the world and how it looks. Everything you have ever seen, everything you have ever heard, even everything you have ever felt and smelt, is not real. It’s all just pretend. I’m not joking either, everything you have ever experienced has been made up. (more…)

A Small Comment About the Last Post and Empty Space

I wanted to add a little bit more to the last post, but it was already getting quite long and I thought it would be best to publish this seperately.

Atoms are vitally important, but trying to explain what they are is not always the most fascinating of tasks. However one thing about them really does interest me. (more…)