#scince

An international team has unearthed the oldest spear tip ever found in Europe and notes that it was fashioned by Neanderthals. In their paper published in the Journal of Archaeological Science, the group describes how and where the spear tip was found, its condition and what they have learned about it through extensive study. The spear tip was found back in 2003 in a sediment layer in a cave in the North Caucasus, Russia, along with a host of bones from a variety of animals, and also the remnants of a campfire. It was only recently that the spear tip was fully examined.

An interesting nodule When sediments are lithifying (the act of turning into rock) they often form a variety of nodules and concretions (see http://tinyurl.com/pwfs2tf), harder lumps of precipitated minerals, often surrounding a fossil or filling a worm hole. These can pass through several compositional incarnations as the zone passes through geological history, meeting a variety of conditions along the way. These interactions can become chemically complex if ore bodies are involved, as so many elements become part of the mix and they form minerals of widely varying appearance depending on their ambient chemical conditions, such as whether the zone is oxidised or reduced (see http://on.fb.me/1I4XWKt for an explanation).

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from wide eyes to mouth parted to eyebrows narrowed to fingers running through one's hair to looking up at the ceiling and smiling like you found all the answers to your problems. yes I go through all this and more.

-If you get annoyed randomly and every little thing sets you off: You’re stressed or have an unknown cause of anxiety

-If you get a random wave of sadness: You’re missing someone

-If you ever want to get clothes for someone but don’t know what type of colors they like, ask them how well they can see in the dark- If they can see well buy darker clothing, if they can’t see well buy them lighter clothing like pastels (there’s a whole reason behind this that will take too long to explain)

-When studying- If you’re allowed to chew gum in school chew mint gum while you study and chew a fresh piece of the same gum when you take the test and it’ll help you remember the material but if you can’t chew gum then listen to the same song over and over until it’s stuck in your head. If you get stuck during the test, play the song in your head and it’ll help you remember (I’ve don’t both of these methods and they work)

-No matter how many times you forget a name you will never forget a face- it’s impossible. If you see someone you recognize but don’t remember their name ask them how to spell it and put it together (I do this a lot whoops)

-Did you make plans on Saturday because it’s sunny but it’s Saturday and you’re hanging out and it looks like it’s going to rain?? If it’s humid, and the clouds are thinner and more stretched out you should be fine but if it’s humid and the clouds are big and compact- run