Download presentation
Presentation is loading. Please wait.
Published byMonica Dixon Modified over 9 years ago
1
Magnetite Attrib-NoCom-ShareAlike: Drift Words
2
GNU IronMonger2001 Magnetite, the original magnet, is also know as ‘lodestone’. You may be familiar with the Marvel Comic character, Lodestone. Attrib-NoCom-ShareAlike: Bob.Fornal USGS
3
Attrib-NoCom:The Tardigrade Magnetite sands eroded from magnetite bearing rock, and can be economically viable sources of iron ore.
4
Attrib-NoCom-ShareAlike: stuandgravy One of the main sources of magnetite, and hence iron ore, is found in the banded iron formations of North America and Australia.
5
Magnetite is the source of the modern compass. The needle in a compass is iron that was magnetized by being struck against magnetite. It aligns itself with the Earth’s magnetic field. Attrib-NoCom-ShareAlike: LeoL30
6
Attrib: Windell H. Oskay, www.evilmadscientist.com You can make a simple compass. Embed a magnet in a foam tray, and float in a bucket of water. The north end of the magnet will point to magnetic north.
7
Compass invention made sea navigation, commerce and warfare possible. Attrib-NoCom: Iguana Jo Attrib-NoCom-ShareAlike: pen3ya
8
Iron Age tools and weapons were made from iron ore like magnetite. Attrib-NoCom-ShareAlike: Mary Harrsch Long before the compass was invented,
9
This man has taught himself to live as if he were in the iron age. Attrib: Wendy & Andrew McGregor, www.flickr.com/photos/indigogoat
10
Attrib-ShareAlike: hans s You know that magnetite is a source of iron, and also that steel is mostly iron. So magnetite is a source for the steel that makes the backbone of our society. In this photo a medieval re-enactor is making a steel sword.
11
Magnetite and hematite are the main iron ores. After mining, the ores are processed into iron or steel and then made into cars, trucks, ships, and the structural support of buildings and highways. Attrib-NoCom: farlane
12
Attrib-ShareAlike: Omegatron One of the most common forms of magnets today, ceramic magnets are made in molds from powders of iron ore and other materials. These are the magnets that are in speakers.
13
Attrib-ShareAlike: Izzard Iron filings are used to dust for invisible fingerprints. The wand has a magnet in the handle which picks up filings, and when it is pulled away the filings fall. The fingerprint oils hold the filings.
14
This fMRI, a functional Magnetic Resonance Imaging machine, uses magnets (or electromagnets) to learn about brain function. Attrib-NoCom-NoDerivs:MacRonin47
15
Check out what happens if you put a magnet near your computer screen! This could wreck your screen. Do not do it. Attrib-NoCom-ShareAlike: spike55151
16
Magnetite in a meteorite raised hopes of life on Mars. Some bacteria align themselves to the Earth’s magnetic field. These bacteria precipitate chains of magnetic crystal in their cells, like below. NASA When NASA scientists looked at a meteorite from Mars, they found chains of magnetite (see left) that looked similar to chains produced only by living organisms. Unfortunately, similar magnetite chains were created inorganically not long after.
17
Magnetite Attrib-NoCom-ShareAlike: Drift Words
18
Attribution – Noncommercial – Share Alike Attribution Attribution – No Derivative works Attribution – Share Alike Attribution – Noncommercial – No Derivative works Types of media rights ownership (none) Public domain © Copyright. All rights reserved
19
Creative Commons Attribution means: You let others copy, distribute, display, and perform your copyrighted work - and derivative works based upon it - but only if they give you credit. Noncommercial means: You let others copy, distribute, display, and perform your work - and derivative works based upon it - but for noncommercial purposes only. No Derivative Works means: You let others copy, distribute, display, and perform only verbatim copies of your work, not derivative works based upon it. Share Alike means: You allow others to distribute derivative works only under a license identical to the license that governs your work. (credit: http://creativecommons.org/about/licenses/meet-the-licenses)
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.