Viscosity Can Have A Notable Effect On Droplet Impacts. This Poster Demonstrates With Snapshots From

We Are Built To Be Kind

Greed is good. War is inevitable. Cooperation is for suckers. 

Whether in political theory or popular culture, human nature is often portrayed as selfish and power hungry. UC Berkeley psychologist Dacher Keltner challenges this notion of human nature and seeks to better understand why we evolved pro-social emotions like empathy, compassion and gratitude.

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Chemistry Valentine’s Cards by Nick Uhlig.

Beautiful Winged Insects Made of Discarded Circuit Boards by Julie Alice Chappell

Blood Vessels, part 1 - Form and Function By CrashCourse

Now that we’ve discussed blood, we’re beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic three-layer structure of your blood vessels. We’re also going over how those structures differ slightly in different types of vessels. We will also follow the flow of blood from your heart to capillaries in your right thumb, and all the way back to your heart again. Table of Contents The Basice Three-Layer Structure of Your Blood Vessels 2:17 Different Types of Vessels 3:36 The Flow of Blood From Your Heart to Capillaries 3:59 The Flow From Capillaries to the Heart 7:01

High Current/Amps through metal

Any metal that can conduct low voltage / high amperage electricity acts as a resistor between two electrode wires (as in the case above), which are made out of copper, which has a better conductivity than iron/steel which heats up due to the extreme electrical resistance. 

Copper (Cu):

Resistivity: ρ(Ω·m) at 20ºC = 1.68×10−8

Conductivity: σ (S/m) at 20ºC = 5.96×107 

Temp. Coefficient:  0.003862 (K−1)

Iron (Fe): (although what you see in the gif is steel, iron comes pretty close)

Resistivity: ρ(Ω m) at 20ºC = 1.00×10−7

Conductivity: σ (S/m) at 20ºC = 1.00×107

Temp. Coefficient: 0.005 (K−1)

Giffed by: rudescience  From: This video

Moon Night Mushroom (Tsukiyotake) - Omphalotus japonicus

A spectacular photo of the bioluminescent fruiting bodies of the mushrooms scientifically named Omphalotus japonicus (Marasmiaceae), glowing in the darkness.

The glowing fungi grow on wood and their light is visible at night. Luminous higher fungi emit greenish light with a maximum emission in the range of 520–530 nm. A luminous taxon emits light in only a certain period of its life cycle; before and after that period, it generally does not glow.

Omphalotus japonicus is known from Japan and other sites in East Asia, where it is regarded as a poisonous mushroom. 

Synonymous: Lampteromyces japonicus

References: [1] - [2]

Photo credit: ©Jun Kobayashi | Locality: Toyota-shi, Aichi Prefecture, Japan (2014)

Straight Outta Answers

A scientific parody of Do you wanna build a snowman? from Disney’s Frozen. Lyrics by hyacynthus and myself. Vocals by me. A music video may be forthcoming.

Corrugated Liomera - Liomera rugata

This ultra-pinkish crab (actually magenta) is scientifically named Liomera rugata (Decapoda - Xanthidae), a species which inhabits in coral reefs of the Red Sea, Tahiti, Hawaii, Philippines, China Sea, Japan, India and French Polynesia. It is also commonly known as Corrugated Crab due to the visible granules that cover the surface of carapace.

References: [1] - [2]

Photo credit: ©Todd Aki | Locality: Hilo, Hawaii (2014)