Friday Squid Blogging: Squid Filmed Changing Color for Camouflage Purposes
news.movim.eu / Schneier · Monday, 25 April, 2022 - 19:43
Video of oval squid ( Sepioteuthis lessoniana ) changing color in reaction to their background. The research paper claims this is the first time this has been documented.
As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.
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Friday Squid Blogging: Squid Skin–Inspired Insulating Material
Bruce Schneier · news.movim.eu / Schneier · Thursday, 7 April, 2022 - 14:34
Drawing inspiration from cephalopod skin, engineers at the University of California, Irvine invented an adaptive composite material that can insulate beverage cups, restaurant to-go bags, parcel boxes and even shipping containers.
[…]
“The metal islands in our composite material are next to one another when the material is relaxed and become separated when the material is stretched, allowing for control of the reflection and transmission of infrared light or heat dissipation,” said Gorodetsky. “The mechanism is analogous to chromatophore expansion and contraction in a squid’s skin, which alters the reflection and transmission of visible light.”
Chromatophore size changes help squids communicate and camouflage their bodies to evade predators and hide from prey. Gorodetsky said by mimicking this approach, his team has enabled “tunable thermoregulation” in their material, which can lead to improved energy efficiency and protect sensitive fingers from hot surfaces.
Research paper .
As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.
Read my blog posting guidelines here .
Friday Squid Blogging: Strawberry Squid Video
Bruce Schneier · news.movim.eu / Schneier · Thursday, 7 April, 2022 - 14:34
Friday Squid Blogging: The Costs of Unregulated Squid Fishing
Bruce Schneier · news.movim.eu / Schneier · Friday, 18 March, 2022 - 18:47
Greenpeace has published a report, “ Squids in the Spotlight ,” on the extent and externalities of global squid fishing.
News article .
As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.
Read my blog posting guidelines here .