Common weed may be 'super plant' that holds key to drought-resistant crops
A common weed harbors important clues about how to create drought resistant crops in a world beset by climate change.
A common weed harbors important clues about how to create drought resistant crops in a world beset by climate change.
Molecular & Computational biology
Aug 5, 2022
12
15530
If you happen to come across plants of the Balanophoraceae family in a corner of a forest, you might easily mistake them for fungi growing around tree roots. Their mushroom-like structures are actually inflorescences, composed ...
Plants & Animals
Sep 21, 2023
1
271
A major problem with how food donation currently works in the United States is that a lot of the calories in those boxes and bags come from items that aren't particularly healthy, such as packaged snacks.
Social Sciences
Mar 23, 2022
0
38
The common analogy for CRISPR gene editing is that it works like molecular scissors, cutting out select sections of DNA. Stanley Qi, assistant professor of bioengineering at Stanford University, likes that analogy, but he ...
Biotechnology
Sep 3, 2021
2
1511
Timing is everything. A fresh example supporting the old saying has been found in connection with the systems regulated by biological clocks.
Plants & Animals
Apr 8, 2020
1
2779
Boasting azure waters and white sands, a Turkish lake that NASA thinks hides secrets about Mars threatens to become too popular for its own good.
Environment
Apr 28, 2021
0
205
Scientists have observed for the first time the faint ripples caused by the motion of black holes that are gently stretching and squeezing everything in the universe.
Astronomy
Jul 2, 2023
2
219
NASA is sending a new laser-toting robot to Mars. But unlike the lasers of science fiction, this one is used for studying mineralogy and chemistry from up to about 20 feet (7 meters) away. It might help scientists find signs ...
Space Exploration
Feb 8, 2020
3
704
Historic redlining and other racist policies have led to present-day racial and economic segregation and disinvestment in many cities across the United States. Research has shown how neighborhood characteristics and resources ...
Social Sciences
Jan 20, 2023
2
106
The launching of thousands of satellites into low Earth orbit by tech billionaire Elon Musk's SpaceX threatens the "de-facto monopolisation" of space, the head of competitor Arianespace Stephane Israel has warned.
Space Exploration
May 27, 2021
6
32
Green is a color, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 520–570 nanometres. In the subtractive color system, it is not a primary color, but is created out of a mixture of yellow and blue, or yellow and cyan; it is considered one of the additive primary colors. On the HSV color wheel, also known as the RGB color wheel, the complement of green is magenta; that is, a purple color corresponding to an equal mixture of red and blue light. On a color wheel based on traditional color theory (RYB), the complementary color to green is considered to be red.
The word green is closely related to the Old English verb growan, "to grow". It is used to describe plants or the ocean. Sometimes it can also describe someone who is inexperienced, jealous, or sick. In the United States of America, green is a slang term for money, among other things. Several colloquialisms have derived from these meanings, such as "green around the gills", a phrase used to describe a person who looks ill.
Several minerals have a green color, including emerald, which is colored green by its chromium content. Animals such as frogs, lizards, and other reptiles and amphibians, fish, insects, and birds, appear green because of a mixture of layers of blue and green coloring on their skin. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize. Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage.
Culturally, green has broad and sometimes contradictory meanings. In some cultures, green symbolizes hope and growth, while in others, it is associated with death, sickness, envy, or the devil. The most common associations, however, are found in its ties to nature. For example, Islam venerates the color, as it expects paradise to be full of lush greenery. Green is also associated with regeneration, fertility and rebirth for its connections to nature. Recent political groups have taken on the color as symbol of environmental protection and social justice, and consider themselves part of the Green movement, some naming themselves Green parties. This has led to similar campaigns in advertising, as companies have sold green, or environmentally friendly, products.
This text uses material from Wikipedia, licensed under CC BY-SA