Sunday, 7 September 2014

Rare Richard Dawkins interview!

Yes another Richard Dawkins so soon. I love him and stumbled across this rare 1 hour interview whilst surfing YouTube. this is fascinating so i thought i would post it for you to watch. i hope you enjoy it and find it thought provoking. It includes religion, alternative medicine.

Saturday, 6 September 2014

Science needs women

I have seen this video before and absolutely love it! It is so inspiring I just had to share it on my blog and I will watch it again myself in future. I hope you enjoy it as much as I do.  It is sad and unfortunate and rather worrying that in 2014 there is still a lack of women in science and a lack of women being promoted to higher roles within science.

Friday, 29 August 2014

Intuition!

From University of Nottingham.

Saturday, 16 August 2014

5 fun Physics Phenomena

I stumbled across this video which I want to share. Actually I got it in my Youtube digest email and really enjoyed it so I hope you do to. The second video of course contains the answers :) Perhaps you would like to give yourself some time to think of explanations yourself before you watch these explanations. Until next time, keep safe x

Saturday, 2 August 2014

Richard Dawkins explains gay genes

I have been a huge admirer of Professor Richard Dawkins since I was a teenager doing my A levels. In fact I had the immense pleasure of attending an event last November in London in which Dawkins participated in. Anyway today I stumbled across this clip in which Dawkins explains via 3 possible theories how he supposes the 'gay gene' came about. I especially like theory 2 if only for the childish reason thats its not often we hear the professor swear and it sounds odd to me. That aside I found this whole video very interesting but I could listen to Dawkins all day. I hope you enjoy it at least as half as much as I do.




Thursday, 24 July 2014

Updates

It has been sometime since I last wrote. I am now off over the summer and hope to write abit on this blog as there hasn't been an entry since february. As you can see I have managed to keep my other blog up to date somewhat.

Sarah's Tracks


My heart is heavy though over the shooting down of the MH17 flight from Holland to Australia which resulted in the loss of everyone on board. Many who were world reknowned HIV researchers heading to Melbourne for the world AIDS conference. I mourn with the netherlands.
In AIDS news however there is some new hope

positive news about AIDS


Peace and love is whats needed now.

Sarah xxx



Saturday, 22 February 2014

The amazing rattle back

Many of you probably know what a rattleback is but I only found out about them recently. My other half learned about them from watching an episode of QI and was fascinated enough to buy us both one. I am the proud owner of this yellow one you see pictured here. as you can tell, it is a boat shaped piece of plastic. Those of you who are in the dark about this toy as much as I was may be wondering what is so remarkable about it. So let me tell you. it has a preferred spin direction. If you spin it in one direction it will happily spin away until it has gradually lost all of its kinetic energy due to friction and as you might expect then stops. However if you try to spin it in the opposite direction, it will resist and rattle about dramatically before then reversing its spin and once again happily rotating in its preferred direction.  This appears to violate the law of conservation of angular momentum which states that the amount of rotation an object has depends on its mass, shape and speed and this remains content if no external torque is applied to the object.
So this makes the rattleback a curiosity which has excited human imagination since prehistoric times. Indeed it is also known by several other names including "celt' ''celtic stone'' and ''space pet''.

here is a youtube video showing this effect somewhat dramatically on a much large rattle back.

This is a great video but doesn't really explain the effect and I haven't done so in any great detail either. I will say rather teasingly that I leave you to think about it or look it up yourselves. If you are a physicist, then perhaps, you know already and can explain it much better tan i ever could. I hope however that you enjoyed this post. Please let me know in the comments :)



I am grateful for any feedback and comments. Thanks for reading and don't be a stranger xxx