What is a cluster of small chemical units called atoms held together by chemical bonds called? What do you call a compound that consists of only two atoms and has a net charge of zero? The smallest unit of matter is the: a. molecule b. atom c. compound d. isotope The simplest f...
aA cluster of magnetically aligned atoms in a magnetic material is called a pole 磁性地被排列的原子群在磁性材料称杆[translate] aseelp onlySilly force has year after year this year much more special seelp onlySilly力量年复一年有特别今年的much more[translate] ...
At least we know now that the age of the Universe is 13.8 billion years and we are confident that this time we are not far wrong. Globular cluster Messier 79, as seen by the Hubble Space Telescope. Credit: NASA and ESA. Acknowledgement: S. Djorgovski (Caltech) and F. Ferraro (Unive...
It was the highlight of the year for us - we created a tiny amount of hydrogen gas (H2) from water and captured it inside an upside-down test tube. (Since hydrogen is lighter than air, it stayed in the open tube. Then we got to light the hydrogen on fire! I bet they don't le...
These qubits are special systems that act like subatomic particles made of atoms, superconducting electric circuits or other systems that data in a set of amplitudes applied to both 0 and 1, rather than just two states (0 or 1). This complicated quantum mechanical concept is called a ...
When soap is dissolved in water, its hydrophobic ends attach themselves to dirt and remove it from the cloth. First, the molecules of soap arrange themselves in micelle formation and trap the dirt at the centre of the cluster. These micelles remain suspended in water like particles in a collo...
"NASA GSFC, A Teacher's Introduction to the Earth's Magnetosphere."http://www-istp.gsfc.nasa.gov/Education/Cluster1.htm Stern, David P. "NASA GSFC, Exploration of the Earth's Magnetosphere."http://www-istp.gsfc.nasa.gov/Education/index.html The Viking Answer Lady, The Aurora Borealis ...
In these star-forming regions, the formations of gas, dust, and other materials cluster together to form denser regions. The density attracts matter and eventually becomes dense enough to create the formation of stars. The remaining material is then believed to form planets and other planetary sys...
A secondary woody stem or limb growing from the trunk or main stem of a tree or shrub or from another secondary limb. Stem The main ascending part of a plant; a stalk or trunk. Branches A lateral division or subdivision of certain other plant parts, such as a root or flower cluster. ...
cluster activityis the spontaneous emission of nuclei heavier than 4He named nuclei-clusters (the clusters up to32S are discovered for today), neutron activity(n)is the spontaneous emission of neutrons by nuclei (it takes place among light nuclei overloaded by neutrons, e.g.5He, or10Li), ...