- casualSTEM
- Posts
- InvisiSnacks | Shroom-Bot | Facebuds
InvisiSnacks | Shroom-Bot | Facebuds
Nice #169
This week I learned 4/10 cats like to play fetch, compared to 8/10 dogs.
And 5/10 people are uncomfortable with non-simplified fractions. š¬
-Steve
Get the weekly email that explains science in sweatpants. Stay smart for free.
InvisiSnacks
Fan favorite junk foods contain the key ingredient for invisibility, Yellow 5. Applying the dye to mice skin makes it transparent.
Absorbs blue light and reduces light scattering in tissue (i.e. skin)
Enabling red and orange light can penetrate deeper
Mouse neurons and blood vessels became visible to naked eye
Washing the dye off reverses invisibility and current tests show no significant toxicity. Similar effects could one day be used to revolutionize human imaging, though our skin is 10x thicker and requires further safety research. ā¦stops eating M&Ms.
Quick! (vote)Which M&M is luckier? |
Check out last weekās results in āUnnatural Selectionā below
Shroom-Bot
Fungi can now control robotic bodies. Researchers developed biohybrid robots using king oyster mushroom mycelium.
Mycelium = web-like fungal root structure
Naturally responds to environmental cues w/ electric signals
Captured signals convert into robotic actions
Researchers altered stimuli to manipulate shroom-bot movement in wheeled and legged bodies. Fungiās ability to thrive in harsh conditions and sense environmental changes could assist in agriculture via soil optimizing robots. Toad from Mario Kart?
Facebuds
Blind cavefish make up for their lack of eyes with a face full of taste buds. Regressive evolution sees former eye sockets filled with fat and scales.
Regressive evolution = losing unnecessary traits
Face-taste buds start appearing ~5 months of age
Still closely related to surface-dwelling cousins
We donāt fully understand the benefits of this trait, or why some continue adding face-buds into adulthood. Ongoing research will uncover how blind cavefish face-tasting benefits their survival. I see.

Clickables
š How weāre tracking the āinternet of animalsā
šø Watch cats drifting for a whole minute
šŗļø Your next vacay - new Mars map just dropped
š Ultra-rare video of a young wombat plodding around

Unnatural Selection
Last week: āWhich would you rather be?ā

Whatās a shark gotta doo doo doo doo doo doo to get a vote around here?
Make sure you vote up top for next weekās āUnnatural Selectionā!

st3v on site
Snack Testing

Good news: st3v volunteered to test yellow 5 invisibility.
Bad news: ā¦we canāt find him and the candy keeps disappearing.

Claim your sunglasses!
Sharing is caringā¦and also unlocks cool shades š
You currently have 0 referrals, only 3 away from receiving casualSTEM Sunglasses!.

or simply forward this email and tell them to click the āSubscribe Nowā button in the intro! (or this one šļø)
currently available in US only

New to the casualSTEM?
Get the weekly email that explains science in sweatpants. Stay smart for free.
Missed last weekās science in sweatpants?
Catch-up here: š¬Shark Dr. | Hot Corn | Pollen Heist
I'd love to hear from you!
Reply to this email, I'd love to hear your thoughts and suggestions!
Reply