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In most people looking at the colour red increases their heart rate which releases adrenaline. This may explain why the colour makes you feel confident and sexy. The adrenaline gives you a rush of heightened emotions. Therefore if you’re dressing up and think you look good that feeling will increase making you feel even sexier.

How colours make you feel is influenced by your childhood and experiences. If at school people mad fun of you for wearing green you are less likely to like green as an adult and it may even cause anxiety. This is a subjective influence on your emotions. There are also universal influences in the W eastern world we associate white with purity and innocence whereas in other cultures it may be associated with death, and sadness. This is because of the world we grow up in. We see how others react to colours, and what colours are present when (like black at a funeral). There are also universal influences that still and completely understood. Like how warm colours such as red, orange and yellow are commonly associated with calmness, serenity and dignity.

“dec” stands for “decimal”, and “oct” stands for “octal” - both of which are numeral systems.

we generally use decimals, which have powers of 10 - if you’ve ever seen scientific notation, you can write numbers as things like 2 x 10^1 = 20.

the octal system is in base 8 instead. so it’d be like if we used 8 instead of 10 for our scientific notation

31 in decimal can be written as 3 x 10^1 + 1 x 10^0 = 30 + 1 = 31

now knowing this, to convert an octal number to its decimal counterpart, you’d take the decimal system expansion (as above) replace all of the 10s with 8s, which becomes:

3 x 8^1 + 1 x 8^0 = 24 + 1 = 25

if you want the equation, it is here:

so 25 decimal = 25 dec = 31 oct = 31 octal, the dates of christmas and halloween! 

Then, in the middle of the night for no apparent reason, a fire breaks out in the engineer’s wastebasket. The engineer rushes over to the bathroom, empties out the ice bucket, fills it with water and pours it into the trash can, dousing the fire. Satisfied that the problem was solved, the engineer goes back to sleep.

Shortly thereafter, a fire broke out in the physicist’s wastebasket. The physicist rushes to the bathroom, whips out his calculator, frantically does a few computations, pulls out a cup, fills it to a precisely measured level, and rushes back to the wastebasket, pouring the water onto the fire. As the last drop hits the flame, the fire goes out. Satisfied that the problem was solved, the physicist goes back to sleep.

Amazing slow mo of a balloon bursting by Slow Mo Lab - It’s sort of mesmerising…

I had a conversation at my non-science day job that went like this:

A friend who shall be called Diane (not her real name) comes to my desk to chat.  Just one of the many topics we discuss is that her boyfriend is  taking a class in wildlife biology.  She has decided that she has grown tired of hearing about local wildlife and hearing him recite a plethora of scientific names. 

I responded positively to this subject, and told her that I too found the subject interesting.  A third person had heard our conversation.  We shall call her Claire (again, not her real name).  Claire immediately responded, “Girls don’t like that kind of thing.”

“Are you saying that girls don’t like science?” I asked.

“No, not normally they don’t,” she responded.

Before you all screech with anguish, bear with me for a moment.  We all know that this is not true.  As a man, I find this idea upsetting for countless reasons that have all been validly discussed before.  To try to debate the issue is rather moot.  Instead, I’d like a show of hands.

Ladies of the Science Side of Tumblr!  I call you to arms!  Will you rally around me in saying that women can and do indeed love science, of any variety?  Gentleman of the Science Side of Tumblr who know someone who is a girl who also happens to love science, will you stand with me too?  We all like and reblog the pro-women-in-science posts we see so often, let’s all stand and be counted in one place this time.