Two decades of satellite and GPS data show the Thwaites Eastern Ice Shelf slowly
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Scientists design a two-legged robot powered by muscle tissue
Compared to robots, human bodies are flexible, capable of fine movements, and can convert energy efficiently into movement. Drawing inspiration from human gait, researchers from Japan crafted a two-legged biohybrid robot by combining muscle tissues and artificial materials. Publishing on January 26 in the journal Matter, this method allows the robot to walk and pivot.“
Research on biohybrid robots, which are a fusion of biology and mechanics, is recently attracting attention as a new field of robotics featuring biological function,” says corresponding author Shoji Takeuchi of the University of Tokyo, Japan
“Using muscle as actuators allows us to build a compact robot and achieve efficient, silent movements with a soft touch."The research team’s two-legged robot, an innovative bipedal design, builds on the legacy of biohybrid robots that take advantage of muscles.
Muscle tissues have driven biohybrid robots to crawl and swim straight forward and make turns – but not sharp ones.
Yet, being able to pivot and make sharp turns is an essential feature for robots to avoid obstacles.
To build a nimbler robot with fine and delicate movements, the researchers designed a biohybrid robot that mimics human gait and operates in water.
The robot has a foam buoy top and weighted legs to help it stand straight underwater.
The skeleton of the robot is mainly made from silicone rubber that can bend and flex to conform to muscle movements.
The researchers then attached strips of lab-grown skeletal muscle tissues to the silicone rubber and each leg.
When the researchers zapped the muscle tissue with electricity, the muscle contracted, lifting the leg up. The heel of the leg then landed forward when the electricity dissipated.
By alternating the electric stimulation between the left and right leg every 5 seconds, the biohybrid robot successfully "walked” at the speed of 5.4 mm/min (0.002 mph). To turn, researchers repeatedly zapped the right leg every 5 seconds while the left leg served as an anchor.
The robot made a 90-degree left turn in 62 seconds. The findings showed that the muscle-driven bipedal robot can walk, stop, and make fine-tuned turning motions.
“Currently, we are manually moving a pair of electrodes to apply an electric field individually to the legs, which takes time,” says Takeuchi.
“In the future, by integrating the electrodes into the robot, we expect to increase the speed more efficiently.”
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Scientists advance affordable, sustainable solution for flat-panel displays and wearable tech
Scientists have developed ‘supramolecular ink,’ a new 3D-printable OLED (organic light-emitting diode) material made of inexpensive, Earth-abundant elements instead of costly scarce metals. The advance could enable more affordable and environmentally sustainable OLED flat-panel displays as well as 3D-printable wearable technologies and lighting
“By replacing precious metals with Earth-abundant materials, our supramolecular ink technology could be a game changer for the OLED display industry,” said principal investigator Peidong Yang, a faculty senior scientist in Berkeley Lab’s Materials Sciences Division and professor of chemistry and materials science and engineering at UC Berkeley. “What’s even more exciting is that the technology could also extend its reach to organic printable films for the fabrication of wearable devices as well as luminescent art and sculpture,” he added
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Soundwaves harden 3D-printed treatments in deep tissues
A specialized ink hardens when exposed to focused ultrasound waves, transforming into biologically compatible structures
Date: December 7, 2023
Source: Duke University
Summary: Engineers have developed a bio-compatible ink that solidifies into different 3D shapes and structures by absorbing ultrasound waves. Because the material responds to sound waves rather than light, the ink can be used in deep tissues for biomedical purposes ranging from bone healing to heart valve repair.
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WORLD SCIENCE DAY
The science of today is the technology of tomorrow.
To promote your business using digital posters, we are providing free trials for 7 days
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ALTThe color wheel is a circular diagram of colors arranged by their chromatic relationship. It is often used to understand color relationships and combinations.
The basic color wheel consists of primary, secondary, and tertiary colors.
- Primary Colors:
- These are the foundation of every other color.
- In traditional color theory, there are three primary colors: red, blue, and yellow.
- All other colors are created by mixing these primary colors together.
- Secondary Colors:
- These colors result from mixing two primary colors.
- The three secondary colors are green (blue + yellow), orange (red + yellow), and purple (red + blue).
- Tertiary Colors:
- These are created by mixing a primary color with a neighboring secondary color.
- The six tertiary colors include red-orange, yellow-orange, yellow-green, blue-green, blue-purple, and red-purple.
👉Follow @everythingaboutbiotech for useful posts.
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New study models the transmission of foreshock waves towards Earth – ScienceDaily
New study models the transmission of foreshock waves towards Earth — ScienceDaily
An international team of scientists led by Lucile Turc, an Academy Research Fellow at the University of Helsinki and supported by the International Space Science Institute in Bern has studied the propagation of electromagnetic waves in near-Earth space for three years. The team has studied the waves in the area where the solar wind collides with Earth’s magnetic field called foreshock region, and…
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Each year approximately 300,000 people have their appendix removed in the U.S.
#factoftheday #learning #education #til #funfact #medicine #medicalscience #funfacts #humanbody #facts #humanbodyfacts #todayilearned #factsdaily #knowledge #todayilearnedthat #lessonoftheday #scienceisfun #coolthings #discovery #learn #sciencedaily #staycurious #sciencelover #sciencefacts #sciencelovers #science #sciences
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Dana riset minim, bukan alasan!
Banyak peneliti yang selalu mengeluh bahwa dana riset yang tersedia sangat minim untuk menghasilkan riset yang unggul atau berdampak luar biasa.
Stop complaining!
Itu hanya alasan bagi yang malas dan akhirnya menjadi alibi yang umum banyak peneliti. Di tengah keterbatasan, banyak peneliti yang kemudian menjadi lebih kreatif dalam berkarya.
UUD, ujung-ujungnya duit, betul!. Untuk riset peneliti butuh dana. Tapi kalau dana minim bukan lagi alibi yang tepat di jaman sekarang. Dana riset yang tersedia cukup melimpah. Dari yang orde-nya 50 juta sampai 2 M juga ada. Its’ a matter of being competitive. Waktunya kita menjadi pemain. Bukan lagi hanya menunggu disuapi.
Saya mengambil contoh di Eropa, Prof. yang tidak mendapatkan grant untuk penelitian tidak akan memiliki tim riset dan ujung-ujungnya lab akan ditutup. Sangat bertolak belakang dengan kondisi yang terjadi di tanah air.
Beberapa kondisi klasik lainnya adalah track record. Banyak peneliti yang memilih untuk menjadi opportunis dibandingkan dengan membangun expertise dari track record yang konsisten.
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New sibling diagnosis for post-traumatic stress disorder – ScienceDaily
New sibling diagnosis for post-traumatic stress disorder — ScienceDaily
The World Health Organization (WHO) recently listed a new sibling diagnosis for post-traumatic stress disorder (PTSD), termed complex post-traumatic stress disorder (CPTSD). An international team with the involvement of the University of Zurich has now summarized the symptoms of the long-awaited new diagnosis and issued guidelines for clinical assessment and treatment.
One of the most widely…
