The paranormal field is full of theories and concepts about why activity may be occurring. Research has shown support some claims, and even spiritual beliefs have ties to power paranormal activity.
Renovations
One theory about the paranormal is while a location is undergoing renovations, the activity is stirred. A widely accepted idea with this theory is the spirit doesn't want their domain tampered with. The location may have been their home, and who wants strangers coming in to rearrange her or his furniture. It can be thought of in that sense.
The energy used, both human and technical power, could be the battery the spirit needs to make her or himself known. Because it's thought ghosts can draw energy from the living and from technical devices, it's a possibility the more constant presence of each when renovating a location provides the spirit with a fuel to manifest not regularly in the location.
Equipment used in renovations could simply disturb the spirits as well. In the case of a home renovation, maybe the introduction of new people, unknown to the spirit, makes the manifest. The point being a stranger coming into a house with noisy equipment and changing the internal structure comfortable to the spirit.
An example of paranormal claim helping to solidify this theory comes out of the Cashtown Inn in Gettysburg, Pennsylvania. People have reported seeing a spirit walking across the floor, appearing only from the knees up. This alleged spirit is said to still be walking the floor as it was at the time of the Civil War. Renovations raised the floor, though the spirit is claimed to apparently be walking on the floor as it once was in the time. The idea is this spirit is locked in the time of the Civil War (http://www.salem-news.com/articles/september262010/tim-loop-ghosts-te.php). Because of this, the recent changes made haven't affected the realm in which this ghost walks. While this example doesn't illustrate how renovations can help activity manifest, it does show how changes to a location affect the spirit world.
The energy used, both human and technical power, could be the battery the spirit needs to make her or himself known. Because it's thought ghosts can draw energy from the living and from technical devices, it's a possibility the more constant presence of each when renovating a location provides the spirit with a fuel to manifest not regularly in the location.
Equipment used in renovations could simply disturb the spirits as well. In the case of a home renovation, maybe the introduction of new people, unknown to the spirit, makes the manifest. The point being a stranger coming into a house with noisy equipment and changing the internal structure comfortable to the spirit.
An example of paranormal claim helping to solidify this theory comes out of the Cashtown Inn in Gettysburg, Pennsylvania. People have reported seeing a spirit walking across the floor, appearing only from the knees up. This alleged spirit is said to still be walking the floor as it was at the time of the Civil War. Renovations raised the floor, though the spirit is claimed to apparently be walking on the floor as it once was in the time. The idea is this spirit is locked in the time of the Civil War (http://www.salem-news.com/articles/september262010/tim-loop-ghosts-te.php). Because of this, the recent changes made haven't affected the realm in which this ghost walks. While this example doesn't illustrate how renovations can help activity manifest, it does show how changes to a location affect the spirit world.
Water
Some believe the presence of running water can power paranormal activity. The theory is a location with water on the property has the potential for odd happenings, because spirits are said to draw energy from electromagnetic fields. Running water naturally produces an electromagnetic field. Think about a mill or power plant that uses water as it's power source; ghosts basically do the same according to this theory.
Shane Sorios explains in Water and the Paranormal (http://www.trueghost.com/water_and_the_paranormal.htm) how he's observed a trend in activity levels of locations with water flowing through the property. He does state water isn't a requirement, nor a guarantee for paranormal occurrences. He says if water's there and paranormal activity is reported, the water is a likely candidate for the battery. His article goes on to discuss the concept of light, which is typically how spirits are reportedly seen; as a ball of light or just having a glow around them. Sorios brings up an interesting point about how the water and light interact. He says because water can change the speed of light, and in doing so, may create the perfect atmosphere for spirits to be picked up by our eye. Sorious' ideas on the link between water and spirits holds a lot of credit based on the scientific approach he takes.
The Queen Mary is an excellent example of paranormal activity being tied to water. Sitting stationary, the ship constantly has the water of the Pacific lapping against its hull. There have been a wide range of claims by individuals aboard the Queen Mary, from seeing apparitions, hearing noises, and even postulating a section of the ship acts as a vortex to the spiritual realm. Seeing and hearing spirits seems casual when throwing in the idea of a vortex to the other side. The water could be creating enough of an electomagnetic field to power all of the activity. If that's the case, considering the ship sits inside the battery, it's not improbable to think a gateway has opened on the ship. And back to the science, saltwater conducts electricity more effectively than fresh water (http://aquarius.nasa.gov/electrolysis.html). It's recently been theorized the movement of water throughout the oceans influence the earth's magnetic fields (http://www.sciencedaily.com/releases/2009/06/090615094038.htm). That information is interesting, given this theory of the paranormal. The science helps support the theory, so it's possible the Queen Mary sits in a high electromagnetic field. With the energy in the air and the activity likely haing an endless supply, it seems possible the ship sees a high count of paranormal claims.
Shane Sorios explains in Water and the Paranormal (http://www.trueghost.com/water_and_the_paranormal.htm) how he's observed a trend in activity levels of locations with water flowing through the property. He does state water isn't a requirement, nor a guarantee for paranormal occurrences. He says if water's there and paranormal activity is reported, the water is a likely candidate for the battery. His article goes on to discuss the concept of light, which is typically how spirits are reportedly seen; as a ball of light or just having a glow around them. Sorios brings up an interesting point about how the water and light interact. He says because water can change the speed of light, and in doing so, may create the perfect atmosphere for spirits to be picked up by our eye. Sorious' ideas on the link between water and spirits holds a lot of credit based on the scientific approach he takes.
The Queen Mary is an excellent example of paranormal activity being tied to water. Sitting stationary, the ship constantly has the water of the Pacific lapping against its hull. There have been a wide range of claims by individuals aboard the Queen Mary, from seeing apparitions, hearing noises, and even postulating a section of the ship acts as a vortex to the spiritual realm. Seeing and hearing spirits seems casual when throwing in the idea of a vortex to the other side. The water could be creating enough of an electomagnetic field to power all of the activity. If that's the case, considering the ship sits inside the battery, it's not improbable to think a gateway has opened on the ship. And back to the science, saltwater conducts electricity more effectively than fresh water (http://aquarius.nasa.gov/electrolysis.html). It's recently been theorized the movement of water throughout the oceans influence the earth's magnetic fields (http://www.sciencedaily.com/releases/2009/06/090615094038.htm). That information is interesting, given this theory of the paranormal. The science helps support the theory, so it's possible the Queen Mary sits in a high electromagnetic field. With the energy in the air and the activity likely haing an endless supply, it seems possible the ship sees a high count of paranormal claims.