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Tough water-repellent coating could lead to faster ships

Engadget

You've no doubt seen footage of water-repellent coatings that seemingly defy the laws of nature. However, they have a catch: they're often too fragile to be useful in situations where they're likely to face a lot of abuse, whether it's the clothes on your back or a ship on the ocean. Researchers may finally have a solution that's tough enough to survive these conditions, however. They've developed a coating whose combination of fluorinated polyurethane elastomer and a complex, extremely hydrophobic molecule can self-heal "hundreds" of times despite phenomenal levels of abuse. It'll recover from direct strikes, burns, chemical attacks and even ultrasonic blasts.


Water-repellent surfaces that mimic insects' wings could be used to develop PPE

Daily Mail - Science & tech

The wings of insects are inspiring scientists hoping to create PPE impervious to saliva droplets infected with the coronavirus. Microscope analysis of insect structures reveals a previously undiscovered nanostructure that is very strong and water repellant. The animal kingdom often inspires engineers and researchers from Penn State University hope this could lead to the advent of superhydrophobic surfaces. 'For the past few decades, conventionally designed water repellent surfaces have usually been based on plants, like lotus leaves,' said Lin Wang, a doctoral student at Penn State and the lead author of the paper. This has meant most water repellant layers and coatings have been based on this blueprint. A tiny robotic camera backpack has been created by scientists that can be strapped on the back of insects to record the world from the perspective of a bug.


The 5 best Amazon deals you can get this Tuesday

USATODAY - Tech Top Stories

This Tuesday, shop and save on great stuff for around the house with these Amazon deals. Purchases you make through our links may earn us a commission. Whether you're stocking up on much-needed back-to-school supplies or splurging on a fancy new cooking gadget you've been eyeing for a while, shopping for the best Amazon deals can be a fun distraction from everything else that's going on in life. As dedicated product and shopping experts, we focus on finding the biggest discounts on popular products and items we've actually tried out before and love. Today, we've found some awesome sales on stuff that can make your every day life better, including water-repelling shower liners, sound machines, and so much more.


LifeProof Goa backpack hands-on: Weather resistant pockets and water-repellent fabric make this a great commuter bag

ZDNet

One of the first companies that comes to mind when looking to protect your smartphone from the elements is LifeProof. A few months ago we took the LifeProof Fre and Next for iPhone X out into the winter weather and came away unscathed. We are checking out its new Galaxy S9 product right now. LifeProof recently announced four four new backpacks, ranging in price from $99.99 to $179.99, designed to meet various capacity and organization needs. They will be available starting on 23 May and you can sign up now to be notified when they are available.


Women exposed to PFAS chemicals appear to face an earlier menopause

Daily Mail - Science & tech

Exposure to a type of man-made chemicals may cause menopause to occur two years earlier in women, a new study warns. US researchers found that high levels of per- and polyfluoroalkyl substances (PFAS) in blood samples contributed to an earlier menopause in women. PFAS, which are used as oil and water repellents and coatings for consumer products, can enter water sources and disrupt ovarian function, they say. The chemicals, which are widely used in food packaging, cookware and industrial foams, disrupt the endocrine system – the hormone-producing collection of glands that regulate sexual function. The researchers studied 1,120 midlife women from the Study of Women's Health Across the Nation, a 17-year-long prospective cohort study.