Classic British cars.

Jowett, Rootes pt1

https://youtu.be/JLA-rz7gAeQ

Daimler and Armstrong Siddeley

https://youtu.be/BjeChNXdIuI

'Alice in wonderland' Syndrome.

http://www.livescience.com/51444-alice-in-wonderland-syndrome-acid-flashback.html

Sign of ovulating women

http://www.livescience.com/51395-sign-women-ovulating-face.html

Evolution of the plague.

http://www.livescience.com/51394-plague-evolution.html

Killing Dengue mosquitos

http://www.popsci.com/genetically-modified-mosquito-knocks-out-dengue-brazilian-neighborhood

Psychological cause of back-ache.

http://www.dailymail.co.uk/health/article-3176485/Is-pain-mind-Physical-pain-psychological-root-required-different-kind-treatment.html