Architects and marine scientists at the University of Hong Kong (HKU) have jointly developed a novel method for coral restoration making use of specially designed 3D printed artificial ‘reef tiles’ for attachment by corals to enhance their chance of survival in the Hoi Ha Wan Marine Park in Hong Kong waters.
The artificial reef tiles are specially designed to aid coral restoration by providing a structurally complex foundation for coral attachment and to prevent sedimentation, one of the major threats to corals. They provide anchors for corals of opportunity, i.e. dislodged coral fragments that are unlikely to survive on their own, giving them a second chance to thrive.
The 128 pieces of reef tile with a diameter of 600mm were printed through a robotic 3D clay printing method with generic terracotta clay and then fired at 1125 degrees Celsius. The design was inspired by the patterns typical to corals and integrated several performative aspects addressing the specific conditions in Hong Kong waters.In addition to the novel design of the tiles, the materials used are more eco-friendly than the conventional use of concrete and metal. The tiles were printed in clay and then hardened to terracotta (ceramic) in a kiln. The team plans to expand their collaboration to new designs with additional functions for seabed restoration in the region.
Read more at newatlas.com or check the source for University of HK press release
Tips of using plastic bags by 杨萍萍
Every morning he wakes up like: Let's rape a 16 year old protester, beat her to death, steal her dead body from her family and blame it on the United states of America
This what happens if we stop speaking of these people, they get brutally executed!!! That is not okayyy!!!
So please now speak up for Ali Moazemi, HE IS SCHEDULED TO BE EXCUTED TOMORROW!!! WE NEED TO STOP THIS FROM HAPPENING 🆘
Welcome to the space age, ladies and gentlemen
A member of anti-riot police who has arrested a student shoots directly at an Iranian citizen when he notices he is being filmed.
For those who don’t know or remember, Tumblr used to have a policy around porn that was literally “Go nuts, show nuts. Whatever.” That was memorable and hilarious, and for many people, Tumblr both hosted and helped with the discovery of a unique type of adult content.
In 2018, when Tumblr was owned by Verizon, they swung in the other direction and instituted an adult content ban that took out not only porn but also a ton of art and artists – including a ban on what must have been fun for a lawyer to write, female presenting nipples. This policy is currently still in place, though the Tumblr and Automattic teams are working to make it more open and common-sense, and the community labels launch is a first step toward that.
That said, no modern internet service in 2022 can have the rules that Tumblr did in 2007. I am personally extremely libertarian in terms of what consenting adults should be able to share, and I agree with “go nuts, show nuts” in principle, but the casually porn-friendly era of the early internet is currently impossible. Here’s why:
Credit card companies are anti-porn. You’ve probably heard how Pornhub can’t accept credit cards anymore. Or seen the new rules from Mastercard. Whatever crypto-utopia might come in the coming decades, today if you are blocked from banks, credit card processing, and financial services, you’re blocked from the modern economy. The vast majority of Automattic’s revenue comes from people buying our services and auto-renewing on credit cards, including the ads-free browsing upgrade that Tumblr recently launched. If we lost the ability to process credit cards, it wouldn’t just threaten Tumblr, but also the 2,000+ people in 97 countries that work at Automattic across all our products.
App stores, particularly Apple’s, are anti-porn. Tumblr started in 2007, the same year the iPhone was released. Originally, the iPhone didn’t have an App Store, and the speed of connectivity and quality of the screen meant that people didn’t use their smartphone very much and mostly interacted with Tumblr on the web, using desktop and laptop computers (really). Today 40% of our signups and 85% of our page views come from people on mobile apps, not on the web. Apple has its own rules for what’s allowed in their App Store, and the interpretation of those rules can vary depending on who is reviewing your app on any given day. Previous decisions on what’s allowed can be reversed any time you submit an app update, which we do several times a month. If Apple permanently banned Tumblr from the App Store, we’d probably have to shut the service down. If you want apps to allow more adult content, please lobby Apple. No one in the App Store has any effective power, even multi-hundred-billion companies like Facebook/Meta can be devastated when Apple changes its policies. Aside: Why do Twitter and Reddit get away with tons of super hardcore content? Ask Apple, because I don’t know. My guess is that Twitter and Reddit are too big for Apple to block so they decided to make an example out of Tumblr, which has “only” 102 million monthly visitors. Maybe Twitter gets blocked by Apple sometimes too but can’t talk about it because they’re a public company and it would scare investors.
There are lots of new rules around verifying consent and age in adult content. The rise of smartphones also means that everyone has a camera that can capture pictures and video at any time. Non-consensual sharing has grown exponentially and has been a huge problem on dedicated porn sites like Pornhub – and governments have rightly been expanding laws and regulations to make sure everyone being shown in online adult content is of legal age and has consented to the material being shared. Tumblr has no way to go back and identify the featured persons or the legality of every piece of adult content that was shared on the platform and taken down in 2018, nor does it have the resources or expertise to do that for new uploads.
Porn requires different service providers up and down the stack. In addition to a company primarily serving adult content not having access to normal financial services and being blocked by app stores, they also need specialized service providers – for example, for their bandwidth and network connections. Most traditional investors won’t fund primarily adult businesses, and may not even be allowed to by their LP agreements. (When Starbucks started selling alcohol at select stores, some investors were forced to sell their stock.)
If you wanted to start an adult social network in 2022, you’d need to be web-only on iOS and side load on Android, take payment in crypto, have a way to convert crypto to fiat for business operations without being blocked, do a ton of work in age and identity verification and compliance so you don’t go to jail, protect all of that identity information so you don’t dox your users, and make a ton of money. I estimate you’d need at least $7 million a year for every 1 million daily active users to support server storage and bandwidth (the GIFs and videos shared on Tumblr use a ton of both) in addition to hosting, moderation, compliance, and developer costs.
I do hope that a dedicated service or company is started that will replace what people used to get from porn on Tumblr. It may already exist and I don’t know about it. They’ll have an uphill battle under current regimes, and if you think that’s a bad thing please try to change the regimes. Don’t attack companies following legal and business realities as they exist.
The situation is currently so wild and messed up in my country, Iran.
The government wants ALL of the people to have strong faith in Islam. They force all the women to wear hijab, even if a woman isn't even muslim.
We do not want this in our country!! Everyone should be free to choose what they want to wear, if they want to be muslim or not and if they want to wear hijab or not.
A couple of days ago, Mahsa Amini who was just a normal 22-year-old girl and was on vacation with her family got arrested, beaten and killed by the moral security police, just because she wasn't wearing hijab.
If you see a young girl get murdered by some random person in the street, what do you do? Of course you go and tell the police. But now, in Iran, the policemen are the murderers who are killing some innocent people. WHERE CAN WE REPORT THEIR CRIMES???
Lots of people in Iran are demonstrating in different places now and we're getting united against this unfair situation. But that's not enough! Many people get killed by the police in these demonstrations and we can hear the sound of shotguns echoing in the streets.
You, the people who live in other countries that are safe enough, please be our voice! Please reblog my post or even share it on other platforms. Do whatever you can! Please don't leave us alone. All we want is just freedom and justice.
Please be our voice 🙏🖤