单词:curves of equal vertical magnetic force
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Hoverboards Ignore Gravity Can you imagine riding around the streets of your hometown on a skateboard without wheels? In the late 1980s, film director Robert Zemeckis showed a skateboard floating above the ground in his movie Back To The Future Part
change into把...变成... You can't change iron into gold. 你不能把铁变成金。 I want to change dollars into pounds. 我想把美元换成英镑。 A:Yesterday I bought a sweater from your store.and I'm afraid it's too small for.so I want to
中文 英文 缩写 串/并变换 Serial/Parallel conversion S/P 串接监视 Tandem Connection Monitor TCM 串口线 serial port line 串联线路接口协议 Serial Line Interface Protocol SLIP 串行
捕鱼量the volume of fishing 造纸业paper-making industry 木材储量timber reserves 森林覆盖面积forest-covering area inward investment 对内投资 entrepreneurship创业精神 pay tribute to 表示敬意 subsidies and grants津贴和拨款
Radiation causes damage at the most fundamental level. It mutates the blueprint of life, DNA. Earth's magnetosphere is our crucial defense. It's so fundamental to our evolution and continued existence that the race is on to understand why it's changi
During its magnetic cycle, the Sun undergoes periodic changes in activity. Every 11 years, it enters solar maximum. This 11 years cycle of solar activity has peaks where theres lots of solar storms. And right now where the sun is taking a little napp
Six years later, they come to believe these light flashes are the results of high energy, heavy cosmic rays penetrating the spacecraft and the crew members' eyes. These/ protons or electrons, just very, very high energy, ripped / part of atoms, sprin
By analyzing thousands of lava samples, geophysicists discover/ that the Earth's magnetic field has reversed over 18,000 times in the last 20 million years. On either side of these reversals is a long period of dramatically reduced field strength. Du
If we could flip a switch and just turn off the Earth's magnetic field, it will take about 15,000 years to disappear, based on the rate of decay of the field that we've seen over the last 150 years. It's currently decaying at a rate that would see an
In polar regions where the magnetic field is / weakest, auroras glow in the sky. These dazzling displays of colored lights form when solar particles slam into gases in our atmosphere causing them to glow. The stronger the solar wind, the more dramati
Scientists believe that the South Atlantic Anomaly, is a sign of a global decline in the magnetic field. Evidence of this comes from a surprising source. Dr. Mimi Hill uses pottery to uncover the secrets of earth's magnetic past. Ancient pots tell us
The loss of the magnetic field has a catastrophic impact on the planet's evolution. Mars becomes the red planet we see today. If earths magnetic protection continues to fade, would it suffer the same fate? If it vanishes completely, the planet might
Easily confused by this idea, there has a big thawed iron inner core, so that I think it's just the bar magnet, just permanent magnet frozen in nad, and that's where causes all the magnetic field. But it's too hot inside the Earth, that can't happen
As the vast sphere reaches / maximum speed, something incredible happens. Huge lines of magnetism arc in and out of the model core. Well, we can't see the magnetic field coming out of the experiment, we can measure them, we can put many different mag
Larry Newitt from the Geological Survey of Canada charts the movement of the magnetic North Pole as it wanders the icy reaches of northern Canada. To determine where the magnetic pole / is, we can't rely on one single observation. What I try to do is
+ plus 加号;正号 - minus 减号;负号 plus or minus 正负号 is multiplied by 乘号 is divided by 除号 = is equal to 等于号 is not equal to 不等于号 is equivalent to 全等于号 ≌ is equal to or approximately equal to 等于或
各种标点符号的英文说法 + plus 加号;正号 - minus 减号;负号 plus or minus 正负号 is multiplied by 乘号 is divided by 除号 = is equal to 等于号 is not equal to 不等于号 is equivalent to 全等于号 ≌ is equal to
Reading and writing are very important. 注意: 当主语由and连结时,如果它表示一个单一的概念,即指同一人或同一物时,谓语动词用单数,and 此时连接的两个词前
+ plus 加号;正号 - minus 减号;负号 plus or minus 正负号 is multiplied by 乘号 is divided by 除号 = is equal to 等于号 is not equal to 不等于号 is equivalent to 全等于号 ≌ is equal to or approximately equal to 等于或
Like Mercury, the earth takes a beating from the sun's violent temper. Flares, sun storms and other solar hissy fits can cause electronic mayhem for the satellites that roam above our heads. Fortunately, the earth is protected from this radiation by