Search query: hard
Categories: All Categories
13142 records searched, 217 records found, 20 matches displayed
< Previous 20 articles Next 20 articles >
Search Hints:
- Use a + (plus sign) or - (minus sign) to include or exclude a word: +mars -venus
- Use a ? (question mark) as a wildcard for a single letter: te?t (test,text)
- Use a * (asterisk) as a wildcard for multiple letters: he*t (heat, heart)
- Use a ~ (tilde) to expand word endings: meteor~ (meteorite, meteorid, meteorology)
Most frequent words for articles published in the last 45 days:
developed (95),
climate (85),
team (83),
species (75),
cells (74),
used (72),
human (64),
help (61),
change (60),
water (60),
years (60),
data (57),
energy (55),
such (53),
carbon (51),
discovered (50),
time (48),
like (47),
materials (46),
even (44)
Published Sunshield successfully deploys on NASA's next flagship telescope - Sunshield Successfully Deploys on NASA's Next Flagship Telescope


The James Webb Space Telescope team has fully deployed the spacecraft's 70-foot sunshield, a key mil...
Published Chaos on the nanometer scale - Chaos on the Nanometer Scale: Understanding the Unpredictable Behavior of Matter


Chaotic behavior is typically known from large systems: for example, from weather, from asteroids in...
Published Engineers design sutures that can deliver drugs or sense inflammation - Engineers Design Sutures That Can Deliver Drugs or Sense Inflammation



Engineers have designed tissue-derived 'smart' sutures that can not only hold tissue in place, but a...
Published Person-shaped robot can liquify and escape jail, all with the power of magnets - Person-shaped Robot Can Liquify and Escape Jail, All with the Power of Magnets


Inspired by sea cucumbers, engineers have designed miniature robots that rapidly and reversibly shif...
Published Balancing sustainability, safety and comfort in engineered floor slabs - Balancing Sustainability, Safety, and Comfort in Engineered Floor Slabs


Using less material in floors is a viable strategy for improving sustainability in buildings, as it...
Published New ancient 'marine crocodile' discovered on UK's Jurassic Coast -- and it's one of the oldest specimens of its type ever found - New Ancient 'Marine Crocodile' Discovered on UK's Jurassic Coast


A new study has uncovered a new thalattosuchian -- an ancient 'sister' of modern-day crocodiles' anc...
Published A protein mines, sorts rare earths better than humans, paving way for green tech - A Protein Mines, Sorts Rare Earths Better Than Humans, Paving Way for Green Tech



Rare earth elements, like neodymium and dysprosium, are a critical component to almost all modern te...
Published What did the earliest animals look like? - What Did the Earliest Animals Look Like?



Surprisingly, genome comparisons have failed to resolve a major question in animal evolution: Which...
Published Endangered Bahamas bird may be lost from island following hurricane - Endangered Bahamas Bird May Be Lost from Island Following Hurricane


The endangered Bahama Warbler may be surviving on just one island following Hurricane Dorian's devas...
Published Newly identified softshell turtle lived alongside T. rex and Triceratops - Newly Identified Softshell Turtle Lived Alongside T. Rex and Triceratops


Scientists describe the find of a new softshell turtle from the end of the Cretaceous Period. ABSTRA...
Published Water molecules define the materials around us - Water Molecules: The Defining Factor of the Materials Around Us



A new paper argues that materials like wood, bacteria, and fungi belong to a newly identified class...
Published Scientists develop insect-sized flying robots with flapping wings - Scientists Develop Insect-Sized Flying Robots with Flapping Wings


A new drive system for flapping wing autonomous robots has been developed, using a new method of ele...
Published What causes pools below waterfalls to periodically fill with sediment? - What Causes Pools Below Waterfalls to Periodically Fill with Sediment?


Deep pools below waterfalls are popular recreational swimming spots, but sometimes they can be parti...
Published Surprising similarities in stone tools of early humans and monkeys - Surprising Similarities in Stone Tools of Early Humans and Monkeys


Researchers have discovered artefacts produced by old world monkeys in Thailand that resemble stone...
Published Mysterious dashes revealed in Milky Way's center - Mysterious Dashes Revealed in Milky Way's Center



In the early 1980s, astronomers discovered gigantic, one-dimensional filaments dangling vertically n...
Published Measuring the Moon's nano dust is no small matter - Measuring the Moon's Nano Dust: A Challenging Endeavor


Researchers are now measuring tinier moon dust particles than ever before, a step toward more precis...
Published Fossil of mosasaur with bizarre 'screwdriver teeth' found in Morocco - Fossil of Mosasaur with Bizarre 'Screwdriver Teeth' Found in Morocco



Scientists have discovered a new species of mosasaur, a sea-dwelling lizard from the age of the dino...
Published Effective as a collective: Researchers investigate the swarming behavior of microrobots - Effective as a Collective: Researchers Investigate the Swarming Behavior of Microrobots



Miniaturization is progressing rapidly in just any field and the trend towards the creation of ever...
Published Engineers test an idea for a new hovering rover - Engineers Test an Idea for a New Hovering Rover


MIT aerospace engineers are testing a concept for a hovering rover that levitates by harnessing the...
Published New evidence indicates auroras occur outside our solar system - New Evidence Indicates Auroras Occur Outside Our Solar System


Planetary scientists have found new evidence suggesting auroras – similar to Earth’s Aurora Borealis...