Thanks for the joke submission Zoe. This is an excellent use of cats – but don’t tell Mrs Jackson I said that!
These are 2D ‘standing waves’ due to the superposition of sound waves in a surface.
For my physics class: do you think the sand is at the points of highest amplitude, or lowest?
This Week In Science
Gene therapy: http://bit.ly/ZSA7mF
Multiple Sclerosis: http://bit.ly/106VoLK
New layer of the cornea: http://bit.ly/16wlVl5
Bioengineered vein: http://bit.ly/16YgOO9
Dark matter: http://bit.ly/1a1S9Hh
Gene patents: http://bit.ly/196Q6QJ
Please bear in mind that these are all simply headlines. Please READ the articles linked above before commenting on any of these stories, as a one sentence summary does not present all the facts.
(Story from ‘Science is Awesome‘ facebook group)
At the moment in year 10 we’re doing an investigation into disease and exploring the idea that bacteria (and fungus) is all around us every day but only some of them are harmful to us. Most bacteria and fungus play vital roles in maintaining various ecosystems (helping to decompose and break down material back to their basic building blocks etc) and some types of bacteria are vital for our own health (particularly in the digestive system). Bacteria and fungus grow best in warm, moist, dark conditions where nutrients are plentiful – unfortunately this describes the insides of our bodies (and some outside parts) very well so some bacteria grows rapidly in our bodies taking over and damaging our own cells, this is what makes us sick.
Did you know that a typical human body contains more bacteria cells than human cells… check out this link for more info on that disturbing report!
Check out the different colonies that 10B grew from the various surfaces at school..
This week in science.
Curiosity streambed: http://1.usa.gov/11tuQ13
Frozen plant regeneration: http://bit.ly/13gZVrV
Oldest bird discovered: http://bit.ly/17U5fHY
Synthetic blood: http://bbc.in/136tMEA
Mammoth blood: http://bit.ly/10MNtS5
(Content from ‘Science is Awesome‘ facebook group)
Check out this article from Canada:
A group of year 9 girls were able to demonstrate that plants won’t grow near a Wi-Fi router that gives off radiation equivalent to the amount given off by mobile phones. They came up with the idea for their project after noticing that they typically struggled to concentrate at school after sleeping with their mobile phones next to their beds…
Not only are their findings very unexpected and inspiring a round of follow up investigations by professional scientists – they were also awarded a large prize from the local science competition: