Why do we see only one side of the moon from Earth?
a. the moon does not rotate.
b. the Earth’s rotation is in sync with the moon’s rotation
c. the moons period of rotation is equal to its period of revolution
d. the Earth’s rotation is equal to the moon’s rotation.
Dartmouth engineering professor and entrepreneur Victor Petrenko—along with his colleagues at Dartmouth and at Ice Engineering LLC in Lebanon, N.H.—have invented a way to cheaply and effectively keep ice off power lines.
The new proprietary technology is called a variable resistance cable (VRC) de-icing system. With only minor cable modifications plus some off-the-shelf electronics, the system [...]
Using two simultaneous light-based probing techniques at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory, a team of researchers has illuminated important details about a class of enzymes involved in everything from photosynthesis to the regulation of biological clocks.
The interdisciplinary team has a broad interest in flavoproteins, which were first discovered in the 1930s [...]
1. Tides occur because of the force between Earth and the moon, which is also as________
a. lunar pull
b. inertia
c. lunar orbit
d. gravity
Deforestation in Brazil’s Amazon forests has flipped from a decreasing to an increasing trend, according to new annual figures recently released by the country’s space agency INPE.
Commenting on the figures, Brazilian environment minister Carlos Minc confirmed that the government will on Monday announce forest related carbon emission reduction targets, which will link halting deforestation to [...]
Using a beam of light shunted through a tiny silicon channel, researchers have created a nanoscale trap that can stop free floating DNA molecules and nanoparticles in their tracks. By holding the nanoscale material steady while the fluid around it flows freely, the trap may allow researchers to boost the accuracy of biological sensors and [...]
Science Fair projects are in the finalizing phase. If you are having difficulty with your projects, now is the time to let me know. I may have some saving tricks up my sleeves. Don’t become overwhelmed for there is a cure for all problems, we just have to find it.
On Monday, I spent the day [...]
About how long does it take the moon to travel the entire path around the Earth?
a. one hour
b. one day
c. one month
d. one year
Humus is formed by
a. decomposition
b. weathering
c. erosion
d. abrasion
What is the name for the land that forms where a river flows into an ocean or another body of water?
a. glacier
b. valley
c. current
d. delta
The region of land along a river is
a. meander
b. oasis
c. floodplain
d. riverbed
