The Earth’s magnetic field is a major component to exploring the earth. The north and the south poles have always been a guide for travelers. Using compasses, the direction of the north pole and the south pole has always been provided by the magnetic force of the magnetic field. What many people do not know though is the earth’s magnetic field provides way more than that. The magnetic field, also known as the magnetosphere, protects us from all kinds of harmful substances. Some of these substances include solar wind and harmful radiation from the sun. The magnetosphere also protects the atmosphere, which protects us.
What many people also don’t know is that the poles of the magnetic field are prone to reversal. Research has shown that about 800,000 years ago, the earth’s poles switched places. This is being detected to happen again in short time. This can cause catastrophic and life-threatening consequences. Now the question lies, what can we do to be better prepared for this?
Introduction
The Earth is a home for mankind, a planet sustaining life, and it is also a giant magnet! Magnets in general, no matter what type of magnet it is, have two end faces called poles. Poles are where the magnetic force is most effective. These two poles are known as the north pole and the south pole. Magnets also create a magnetic field from the particles within the magnet. The Earth resembles this same structure. The earth has a geographic north pole and a geographic south pole. Since opposites attract in magnets the south pole of the core of the earth points towards the geographic north pole of the earth and the north pole points towards the geographic south pole of the earth. The core of the earth serves the same purpose as the particles in m...
... middle of paper ...
...ract it.
Summary and Conclusion
In conclusion, there has been no real breakthrough to the issue of the magnetic field. All scientists have been able to do is sit back and watch. With the magnetic field decreasing fast, there is lots of work to be done and lots of questions to be answered. What are going to be the actual consequences of this? Is there any way possible to prevent the reversal? In my opinion, we should stop trying to figure out how to prevent the reversals, and start to conserve energy. Start to work harder on any devices that can enhance the atmosphere of the earth and or reduce the effects of radiation. Start to build a defense mechanism, instead of just trying to know when it’s going to happen. Time is not working for us, but it is also not against us. Strategic planning and conservation of energy is one solution that might save the lives of many.
The earth cannot be exactly represented by a single bar magnet but has numerous higher order poles and very large –scale anomalous features owing to unknown characteristics of the generating mechanism in the earths core. As shown in fig 1 the solar wind or constant flux of particles and electric currents from the sun distort the field lines.The deviation from asymmetric field is the anomalous set of features in the
To sum up, it is obvious that climate shift is actually happened. Human is considered to be the primary cause of the problem. Activities like burning fossil fuel and deforestation are upsetting the climate by interrupt the natural greenhouse gases balance. Global warming has a long term effects in our life. This is a serious concern that actions should be taken immediately before it is too late.
Milutin Milankovitch, a Serbian astronomer, developed an astronomical theory that explains climate change. When the tilt of Earth’s axis changes, the severity of the seasons changes; a greater degree of tilt means warmer summers and cooler winters, while a decrease in the tilt means coolers summers and warmer winters. Because Earth wobbles in orbit, the tilt can range from 22 degrees to 25 degrees on a 41,000-year cycle. Currently, the tilt is at 23.5 degrees. Other...
Global climate change and its apparent effects have been the subject of much discussion for a number of years. It is often claimed that this change is too advanced and the damage caused by it is irreversible, meaning that any efforts by us to undo this are in vain. Although I agree that our planet has become unalterably changed, I don’t entirely concur that this change is now completely beyond repair.
Name the top five scientist you know. You probably said names like Albert Einstein, Ben Franklin, or Thomas Edison. One of the greatest scientist you probably didn’t know about is Nikola Tesla.
Climate change is arguably one of the most controversial topics in modern science, and undoubtedly one of the most important. Ongoing research has shown that the planet’s climatic temperature has increased slightly yet significantly over the past century. Studies have also found that this warming can be attributed to human activities since the Industrial Revolution in the eighteenth and nineteenth centuries. As time goes on and humans continue their harmful actions, climate change and its related effects will continue to negatively impact nearly all living organisms.
Currently, scientists believe that once an ice age has been triggered, oceanic circulation currents can change and the mixing of the oceans cools the southern hemisphere. As glaciers begin to accumulate in the northern hemisphere, solar heat is reflected off the snow which leads to further cooling.
Ever since the beginning on time, Humans believed the ground is solid and immobile. But this is not true whatsoever. The Earth is every-changing and continually in motion. The stability of the Earth is not at all what we think it is. Thinking about the rotational axis of the Earth, and possibly of what the Earth may become at a certain point in time, has a great influence on understanding all aspects of living things, either in the past, present, or future. The Theory of Plate tectonics is accredited to most of the creations of Mountain Ranges, the Centennial drifting Theory, for earthquakes, and volcanic activity. Plate tectonics and mountains also play a big part in the Earth and its geological features.
Temperature has a large effect on particles. Heat makes particles energized causing them to spread out and bounce around. Inversely the cold causes particles to clump together and become denser. These changes greatly F magnetic the state of substances and can also influence the strength of magnetic fields. This is because it can alter the flow of electrons through the magnet.
it just happens i kinda wish it weren't like that but if it weren't like that how will we be able to go into space or save are own planet from killing us to save itself which will happen if we don't save the poles because we need more research about the cold more better coats because when another ice age comes where are we going to go we all cant live
The magnetic susceptibility χ (=M/H) (FC and ZFC) as a function of temperature measured at low applied field (H=50 Oe) is presented in Fig.5. The molar susceptibility shows a monotonic increase upon cooling down to ~ 22 K, where a steeper increase is observed. Below this temperature a bifurcation between the ZFC and the FC curves is evident (see inset of Fig.5. On the other and above 22 K the reciprocal magnetic susceptibility (1/χ) as a function of temperature shows a linear trend (Fig. 5 right scale). In detail, above ca. 30 K, in the paramagnetic region, the Curie-Weiss law is strictly followed. By fitting the linear part of the 1/χ curve with 1/χ = (T-p)/C, in the 30-310 K temperature range, a Curie-Weiss temperature, p = -2.3 K, and the Curie constant, C = 1.30 cm3.K.mol-1, (µeff = 3.2 µB) were obtained. The small negative Curie-Weiss temperature indicates the presence weak antiferromagnetic exchangeinteraction between the Ni magnetic centres. Indeed, the χT curve (Fig. 6 left scale) shows a downward curvature, typical of systems with antiferromagnetic correlations and/or non-negligible spin-orbit coupling. The χT=1.31 cm3.K.mol-1 at 310 K undergoes a small and gradual decrease to 1.19 emu.K.mol-1 at 24.5 K. The Curie constant value, either obtained by1/χ linear fit or the χT product for T>>p is in reasonable agreement with the expected spin-only theoretical value for NiII in octahedral environment with S=1 spin state (C = 1 cm3.K.mol-1and µeff = 2.83 µB considering g = 2) for unquenched orbital moment C = 3.91 cm3.K.mol-1and µeff = 5.59 µB).
During the times of the ancient Greeks, they discovered stones that had the capacity to attract metals such as iron which is believed to be iron that had been electrically magnetized. They began experimenting with the rocks they had found that were magnetized and discovered that when they rubbed the stone on another piece of metal, that it also became magnetized. The Chinese later used this technology, and adapted it to what is now known as the compass, they discovered that it pointed to the directions north and south. William Gilbert then posed the question that what if the entire Earth is magnetic? We surmise that the Earth gained it’s magnetic fields, from the electric motion and current from the molten core (Nave, R). The magnetic field of Earth is directly attributed to the “Dynamo Effect”, this definition explains the origin of the main magnetic field of Earth, and it’s creation through the fluid motion within Ea...
The earth has experienced climate change for the entirety of its existence. For billions of years, this change has occurred at a relatively slow pace, with exceptions being caused by events such as large scale volcanic eruptions. Now, humans are the cause for high rates of climate change and damage to the environment. This is beginning to have damaging effects on not only us, but the world around us, and we are only just started to take action. Efforts to reduce climate change would be more realized if not for the resistance of many due to misconceptions, money, and a reluctance to change. Short- and long-term solutions are being developed by the brightest minds, but they will not work without
It is the reason for the great technological movement of the 21st century. Its applications are used on a day-to-day basis. What is this form of energy? It is electricity. Electricity is defined as a form of energy from the existence of charged particles. The charged particles are either positive or negative (protons or electrons). Moreover, through the same principal, the phenomenon of magnetism is also applied on a day-to-day basis. Magnetism is defined as either an attractive or repulsive force between objects due to an electric charge. To thoroughly understand the strength of electricity and magnets, it is vital to first be cognizant of where and when they were discovered.
The change in climate has been a topic of controversy across the world throughout the past years. Scientists have done research on how climate changes has changed throughout the years around the world. In the past few years, research shows that climate has changed dramatically in the world. Although climate change is something that occurs normally in nature, there has been substantial evidence that mankind is a contributor to the dramatic increase. Most countries around the world have got together to discuss how to reduce mankind’s contribution to climate change, but there is other countries that still do not consider this as a problem. Research conducted by scientists have supported the idea that climate