I'm Ross, I'm a science presenter and video producer.



I mostly reblog stuff I think is awesome and post educational videos I've helped create.



Find out more about me here: http://rossexton.com
Background Illustrations provided by: http://edison.rutgers.edu/
Reblogged from coolsciencegifs  258 notes
coolsciencegifs:

Underwater lung
Your average lung capacity is about 6 litres of air. But even after exhaling there will still be a residual volume of a little over a litre. This is a piece of pig lung being held underwater and squeezed, you can see the bubbles of air leaving the bronchiole tubes from the bottom. Check out the full lung dissection here: http://youtu.be/9xhxALk9gm8
(via Ross Exton)
Don’t forget to check out Ross Exton’s blog!

coolsciencegifs:

Underwater lung

Your average lung capacity is about 6 litres of air. But even after exhaling there will still be a residual volume of a little over a litre. This is a piece of pig lung being held underwater and squeezed, you can see the bubbles of air leaving the bronchiole tubes from the bottom. Check out the full lung dissection here: http://youtu.be/9xhxALk9gm8

(via Ross Exton)

Don’t forget to check out Ross Exton’s blog!
Reblogged from coolsciencegifs  3,702 notes
coolsciencegifs:

Pouring an ice cube using supercooled water:
The temperature of the liquid water is reduced below its freezing point, without becoming a solid. The ice wont form without the presence of a nucleation point (a crystal or impurity around which an ice crystal can begin to grow). However, on contact with another surface, the water instantly freezes. Check out how to make instant ice at home in this video: http://youtu.be/sBFK5-JvBAc
(via Ross Exton)

coolsciencegifs:

Pouring an ice cube using supercooled water:

The temperature of the liquid water is reduced below its freezing point, without becoming a solid. The ice wont form without the presence of a nucleation point (a crystal or impurity around which an ice crystal can begin to grow). However, on contact with another surface, the water instantly freezes. Check out how to make instant ice at home in this video: http://youtu.be/sBFK5-JvBAc

(via Ross Exton)

Reblogged from coolsciencegifs  886 notes
coolsciencegifs:

Your body contains ~50 trillion cells, each cell contains 23 pairs of chromosomes, these chromosomes are made of over 3 billion base pairs of DNA, containing 20,000 genes, coding for millions of different proteins. Phew!
If you’d like to find out more about how this genetic information relates to your breakfast, check out this video, 'How To Make A Chicken': http://youtu.be/qnOVByfyFOQ 
(via Ross Exton)

coolsciencegifs:

Your body contains ~50 trillion cells, each cell contains 23 pairs of chromosomes, these chromosomes are made of over 3 billion base pairs of DNA, containing 20,000 genes, coding for millions of different proteins. Phew!

If you’d like to find out more about how this genetic information relates to your breakfast, check out this video, 'How To Make A Chicken': http://youtu.be/qnOVByfyFOQ 

(via Ross Exton)

Reblogged from coolsciencegifs  165 notes
coolsciencegifs:

Why do things glow red hot?
Incandescence is the emission of visible light from a hot body as a result of its temperature. At roughly 400 degrees Celsius, the vibrating atoms within these hot coals glow with a red light. Despite the high temperature, it’s actually possible to walk across these coals due to their poor thermal conductivity. Find out more about the science of firewalking in this video:http://youtu.be/-iBFwpKV6ak
(via Ross Exton)

If you haven’t already, I strongly suggest you check out Ross Exton’s blog and his professionally produced science videos!

coolsciencegifs:

Why do things glow red hot?

Incandescence is the emission of visible light from a hot body as a result of its temperature. At roughly 400 degrees Celsius, the vibrating atoms within these hot coals glow with a red light. Despite the high temperature, it’s actually possible to walk across these coals due to their poor thermal conductivity. Find out more about the science of firewalking in this video:http://youtu.be/-iBFwpKV6ak

(via Ross Exton)

If you haven’t already, I strongly suggest you check out Ross Exton’s blog and his professionally produced science videos!
Reblogged from coolsciencegifs  5,633 notes
coolsciencegifs:

See-through skin
A ‘vein-viewer' works by using infrared light to image the presence of veins underneath the skin: The IR light is absorbed by the deoxygenated haemoglobin within veins. The locations of absorption and reflection are detected and the machine generates a corresponding projection using visible light. Find out more about how these devices are used in medicine in this video: http://youtu.be/lk0HMqwreIo
(via @rossexton)

coolsciencegifs:

See-through skin

A ‘vein-viewer' works by using infrared light to image the presence of veins underneath the skin: The IR light is absorbed by the deoxygenated haemoglobin within veins. The locations of absorption and reflection are detected and the machine generates a corresponding projection using visible light. Find out more about how these devices are used in medicine in this video: http://youtu.be/lk0HMqwreIo

(via @rossexton)

Reblogged from coolsciencegifs  391 notes
coolsciencegifs:

Alcohol rocket
Here you can see the ignition of ethanol vapour in a bottle. The wave of combustion travels up the length of the rocket, the rapidly expanding gas increases the pressure, and the resulting propulsion sends it flying! Find out how to make a rocket in this video: http://youtu.be/xGrzjikAA5U
(via Ross Exton)

coolsciencegifs:

Alcohol rocket

Here you can see the ignition of ethanol vapour in a bottle. The wave of combustion travels up the length of the rocket, the rapidly expanding gas increases the pressure, and the resulting propulsion sends it flying! Find out how to make a rocket in this video: http://youtu.be/xGrzjikAA5U

(via Ross Exton)

Reblogged from coolsciencegifs  139 notes
coolsciencegifs:

Aperture & Astrophotography
In optics, an aperture is an opening through which light travels. A larger opening in the lens allows more light to your image. In astrophotography you’ll need the largest possible aperture to collect as much light as possible, this equates to a low f-stop number (e.g. f2.1). Find our more about astrophotography in this beginner’s guide to taking a photograph of the Orion Nebula: http://youtu.be/cPy79aWKOQQ
(via @rossexton)
RossSexton’s science blog is fast becoming a firm favorite of mine! I suggest you check it out!

coolsciencegifs:

Aperture & Astrophotography

In optics, an aperture is an opening through which light travels. A larger opening in the lens allows more light to your image. In astrophotography you’ll need the largest possible aperture to collect as much light as possible, this equates to a low f-stop number (e.g. f2.1). Find our more about astrophotography in this beginner’s guide to taking a photograph of the Orion Nebula: http://youtu.be/cPy79aWKOQQ

(via @rossexton)

RossSexton’s science blog is fast becoming a firm favorite of mine! I suggest you check it out!