A record produced by a seismograph on a display screen or paper printout is called a seismogram. Although originally designed to locatenatural earthquakes, seismographs have many other uses, such as petroleum exploration, investigation of Earth's crust and lower layers, and monitoring of volcanic a...
73 Makes Pancakes by:Matchbox火柴盒子 1万 Mouse makes words by:鹅妈妈英语启蒙 1263 Mouse makes words by:PeterTreeHouse 1411 Practice makes perfect by:Rose0735 324 Sunshine Makes the Seasons by:Matchbox火柴盒子 954 Toad Makes a Road by:Matchbox火柴盒子 ...
Tectonics, also known asplate tectonics, is the theoretical understanding of how the surface of the earth is constantly shifting. According to the best understanding of science, gianttectonic platesare always moving very slowly as the Earth generates new crust and reclaims old crust. The effect ha...
When someone tells you they're going somewhere "tropical," you likely picture a sandy beach, a palm tree and a brightly colored drink with an umbrella inside. Though it's not quite a spot-on definition, this mental image you've just conjured isn't far off from the meaning of a tropica...
[02:48.04]a science museum in San Francisco, California. [02:52.68]The so-called holiday [02:54.28]did not gain national recognition [02:56.56]until more than 20 years later. [02:59.88]In 2009, the U.S. Congress [03:02.88]declared every March ...
How the planets came to be on their own is still to be decided. The only heat that would reach the planet is the heat generated from inside the planet's core. The surface would be frozen or, if lucky, very cold. The planet might have a liquid environment, meaning life exists in the...
Bits of quartz (a common mineral in the earth's crust) will break in an unusual way only from intense heat and pressure. The only other place shock-fractured quartz is found is at ground zero of atomic explosions (where a nuclear bomb is exploded). Common elements also act differently ...
A levee is typically little more than a mound of less permeable soil, like clay, wider at the base and narrower at the top. These mounds run in a long strip, sometimes for many miles, along a river, lake or ocean. Levees along the Mississippi River may range from 10 to 20 feet (3...
The lithosphere contains the elements of the Earth crust and part of the upper mantle. This is the hard and rigid outer layer of the Earth. The term is taken from the Greek wordlithosmeaning “rocky”. This part of the Earth includes soil. ...
Another Nail in MORT’s Coffin? I’d been toying with a couple of posts but then decided to read Robert Sapolsky’s book Determined: A Science of Life Without Free Will which I’m a third of the way through. Sapolsky is a neuroscientist and science writer. So far, his argument is per...