Reference Terms
from Wikipedia, the free encyclopedia
Density
Density is a measure of mass per unit of volume.
Note: The above text is excerpted from the Wikipedia article "Density", which has been released under the GNU Free Documentation License.
Related Stories
1
2
Matter & Energy News
March 12, 2025
Mar. 6, 2025 — Researchers have enabled a man who is paralyzed to control a robotic arm through a device that relays signals from his brain to a computer. He was able to grasp, move and drop objects just by imagining himself performing the ...
Mar. 5, 2025 — Engineers have developed a pioneering prosthetic hand that can grip plush toys, water bottles, and other everyday objects like a human, carefully conforming and adjusting its grasp to avoid damaging ...
Feb. 25, 2025 — Discarded food scraps, stray branches, seashells and many other natural materials are key ingredients in a system that can pull drinkable water out of thin air developed by ...
Feb. 25, 2025 — Researchers have developed a battery that can convert nuclear energy into electricity via light emission, a study ...
Latest Headlines
updated 12:56 pm ET
Mar. 12, 2025 — Physicists have created a new computer code that could speed up the design of the complicated magnets that shape the plasma in stellarators, making ...
Mar. 12, 2025 — Researchers gathered emissions data from hundreds of US cities that either conducted a greenhouse gas emissions inventory, or reported they employed ...
Mar. 12, 2025 — Researchers have studied a new method to deliver antibiotics, specifically gentamicin, directly into the bladder tissue to better treat UTIs. They ...
Mar. 12, 2025 — Tracking targeted drug delivery is often a challenge due to limitations in the current imaging techniques. A recent study reports a breakthrough imaging technique that allows direct and highly ...
Mar. 11, 2025 — Researchers have discovered that water generates an electrical charge up to 10 times greater than previously understood when it moves across a surface. The team observed when a water droplet became ...
Mar. 11, 2025 — Where there's water, there are waves. But what if you could bend water waves to your will to move floating objects? Scientists have now developed a technique to merge waves in a water tank to produce ...
Mar. 11, 2025 — Researchers created 'growth printing,' which mimics tree trunks' outward expansion to print polymer parts quickly and efficiently without the molds and expensive equipment typically associated with ...
Mar. 11, 2025 — Microplastics have been found almost everywhere that scientists have looked for them. Now these bits of plastic -- from 1 to 62 micrometers long -- have been found in the filtered solutions used for ...
Mar. 11, 2025 — Cost, technical performance and environmental impact -- these are the three most important aspects for a new type of LED technology to have a broad ...
Mar. 11, 2025 — An international collaboration has shown that additive manufacturing offers a realistic way to build large-scale plastic scintillator detectors for particle physics ...
