Can passenger airships make a triumphantly 'green' comeback?
Large airships were too sensitive to wind gusts and too sluggish to win against aeroplanes. But today, they have a chance to make a spectacular return.
Scientists discover that under certain conditions two kinds of water exist.
- Water can be in two liquid states under cold temperatures, shows new research.
- The scientists used x-ray lasers and computer simulations.
- The discovery has applications across a variety of fields due to water's ubiquity.
Kate the Chemist: Water is a freak substance. Here’s why. | Big Think<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="087f4755c54ffdd980c7af76e6ec437f"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/2ZD7buLY0bI?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
A new method is able to create realistic models of the human heart, which could vastly improve how surgeons train for complex procedures.
- 3D bioprinting involves using printers loaded with biocompatible materials to manufacture living or lifelike structures.
- In a recent paper, a team of engineers from Carnegie Mellon University's College of Engineering developed a new way to 3D bioprint a realistic model of the human heart.
- The model is flexible and strong enough to be sutured, meaning it could improve the ways surgeons train for cardiac surgeries.
Modeling incorporates imaging data into the final 3D printed object.
Credit: Carnegie Mellon University College of Engineering<p>The FRESH technique isn't currently able to 3D bioprint models onto which real cells can grow and form a functional heart, but similar methods may someday make that possible. If scientists can print functional human hearts, it could help the healthcare industry finally meet the demand for heart transplants, which <a href="https://nyulangone.org/news/nyu-langone-addresses-demand-heart-transplants-has-never-been-higher#:~:text=the%20Transplant%20Institute.-,The%20demand%20for%20heart%20transplants%20has%20never%20been%20higher.,rise%20by%20some%2050%20percent." target="_blank">far exceeds supply</a>.</p><p style="margin-left: 20px;">"While major hurdles still exist in bioprinting a full-sized functional human heart, we are proud to help establish its foundational groundwork using the FRESH platform while showing immediate applications for realistic surgical simulation," said Eman Mirdamadi, lead author on the paper, in a statement.</p><p>In the meantime, the team behind the FRESH technique hopes to use it to generate models for other organs, like kidneys and liver. </p>
The "lone genius" often gets the credit for big ideas, but real-world innovation is a team sport.
- Individuals like Elon Musk and Steve Jobs are often idolized as masters of ideas, but according to Whole Foods CEO John Mackey, it usually takes many people iterating and taking chances for a company to be truly innovative.
- Using Whole Foods as a case study, Mackey shares a story of how a bar experiment at one of his California markets evolved into a successful feature and spread to other locations.
- By giving teams the freedom to try (and fail) without being micro-managed, organizations can create a culture that allows innovation to happen, not one that tries to force it to happen.
New book explores a future populated with robot helpers.
As Covid-19 has made it necessary for people to keep their distance from each other, robots are stepping in to fill essential roles, such as sanitizing warehouses and hospitals, ferrying test samples to laboratories, and serving as telemedicine avatars.