Abstract: A magnetically levitating door is disclosed herein. The door may have a bracket having a magnet that is repelled from a magnet of a track. The magnet field of the bracket and the magnet field of the track may have different widths. The track may be disposed adjacent to a door opening. The bracket may have a guard in slidable engagement with the track to limit lateral movement of the magnet of the bracket disposed above and repelling the magnet of the track to levitate the door off of the track while preventing excessive lateral forces on the guard. The bracket may have at least one guide in slidable engagement with the track to secure the engagement of the bracket to the track and maintain vertical alignment of the bracket to the track.

Abstract: A magnetically levitating door is disclosed herein. The door may have a bracket having a magnet that is repelled from a magnet of a track. The magnet field of the bracket and the magnet field of the track may have different widths. The track may be disposed adjacent to a door opening. The bracket may have a guard in slidable engagement with the track to limit lateral movement of the magnet of the bracket disposed above and repelling the magnet of the track to levitate the door off of the track while preventing excessive lateral forces on the guard. The bracket may have at least one guide in slidable engagement with the track to secure the engagement of the bracket to the track and maintain vertical alignment of the bracket to the track.

Abstract: A system for transmitting information related to a network-based marketplace includes identifying information that may be interesting, useful, and entertaining to the users and to the potential users of the network-based marketplace. The identified information may be other than information that is already being displayed in listings by the network-based marketplace. The identified information may be about the sellers, the buyers or other items related to the items offered for sale.

Abstract: A magnetically levitating door is disclosed herein. The door may have a magnet that is repelled from a magnet of a track. The track may be disposed adjacent to a door opening. The track may have a stabilizing roller to maintain vertical alignment of the magnets used to levitate the door off of the track.

Abstract: A system for transmitting information related to a network-based marketplace includes identifying information that may be interesting, useful, and entertaining to the users and to the potential users of the network-based marketplace. The identified information may be other than information that is already being displayed in listings by the network-based marketplace. The identified information may be about the sellers, the buyers or other items related to the items offered for sale.

Abstract: A magnetically levitating door is disclosed herein. The door may have a bracket having a magnet that is repelled from a magnet of a track. The magnet field of the bracket and the magnet field of the track may have different widths. The track may be disposed adjacent to a door opening. The bracket may have a guard in slidable engagement with the track to limit lateral movement of the magnet of the bracket disposed above and repelling the magnet of the track to levitate the door off of the track while preventing excessive lateral forces on the guard. The bracket may have at least one guide in slidable engagement with the track to secure the engagement of the bracket to the track and maintain vertical alignment of the bracket to the track.

Abstract: A magnetically levitating door is disclosed herein. The door may have a bracket having a magnet that is repelled from a magnet of a track. The magnet field of the bracket and the magnet field of the track may have different widths. The track may be disposed adjacent to a door opening. The bracket may have a guard in slidable engagement with the track to limit lateral movement of the magnet of the bracket disposed above and repelling the magnet of the track to levitate the door off of the track while preventing excessive lateral forces on the guard. The bracket may have at least one guide in slidable engagement with the track to secure the engagement of the bracket to the track and maintain vertical alignment of the bracket to the track.

Abstract: A system for transmitting information related to a network-based marketplace includes identifying information that may be interesting, useful, and entertaining to the users and to the potential users of the network-based marketplace. The identified information may be other than information that is already being displayed in listings by the network-based marketplace. The identified information may be about the sellers, the buyers or other items related to the items offered for sale.

Abstract: A magnetically levitating door is disclosed herein. The door may have a bracket having a magnet that is repelled from a magnet of a track. The magnet field of the bracket and the magnet field of the track may have different widths. The track may be disposed adjacent to a door opening. The bracket may have a guard in slidable engagement with the track to limit lateral movement of the magnet of the bracket disposed above and repelling the magnet of the track to levitate the door off of the track while preventing excessive lateral forces on the guard. The bracket may have at least one guide in slidable engagement with the track to secure the engagement of the bracket to the track and maintain vertical alignment of the bracket to the track.

Abstract: A magnetically levitating door is disclosed herein. The door may have a magnet that is repelled from a magnet of a track. The track may be disposed adjacent to a door opening. The track may have a stabilizing roller to maintain vertical alignment of the magnets used to levitate the door off of the track.

Abstract: A magnetically levitating door is disclosed herein. The door may have a magnet that is repelled from a magnet of a track. The track may be disposed adjacent to a door opening. The track may have ball bearings to maintain vertical alignment of the magnets used to levitate the door off of the track.

Abstract: A magnetically levitating door is disclosed herein. The door may have a magnet that is repelled from a magnet of a track. The track may be disposed adjacent to a door opening. The track may have a stabilizing roller to maintain vertical alignment of the magnets used to levitate the door off of the track.

Abstract: A magnetically levitating door is disclosed herein. The door may have a magnet that is repelled from a magnet of a track. The track may be disposed adjacent to a door opening The track may have a stabilizing roller to maintain vertical alignment of the magnets used to levitate the door off of the track.

Abstract: A magnetically levitating door is disclosed herein. The door may have a magnet that is repelled from a magnet of a track. The track may be disposed adjacent to a door opening. The track may have a stabilizing roller to maintain vertical alignment of the magnets used to levitate the door off of the track.

Abstract: A magnetically levitating door is disclosed herein. The door may have a magnet that is repelled from a magnet of a track. The track may be disposed adjacent to a door opening. The track may have a stabilizing roller to maintain vertical alignment of the magnets used to levitate the door off of the track.

Abstract: A magnetically levitating door is disclosed herein. The door may have a magnet that is repelled from a magnet of a track. The track may be disposed adjacent to a door opening. The track may have a stabilizing roller to maintain vertical alignment of the magnets used to levitate the door off of the track.

Abstract: A magnetically levitating door is disclosed herein. The door may have a magnet that is repelled from a magnet of a track. The track may be disposed adjacent to a door opening. The track may have a stabilizing roller to maintain vertical alignment of the magnets used to levitate the door off of the track.

Abstract: A system for transmitting information related to a network-based marketplace includes identifying information that may be interesting, useful, and entertaining to the users and to the potential users of the network-based marketplace. The identified information may be other than information that is already being displayed in listings by the network-based marketplace.

Abstract: A magnetically levitating door is disclosed herein. The door may have a magnet that is repelled from a magnet of a track. The track may be disposed adjacent to a door opening. The track may have a stabilizing roller to maintain vertical alignment of the magnets used to levitate the door off of the track.

Abstract: Various novel sampling heads and interface fittings are disclosed herein adapted for use with handheld RAMAN or other material evaluating devices or analyzers using radiation or electromagnetic energy to identify sampled materials. In particular, the interface fittings or members facilitate measurement of irregularly shaped or very small materials to be sampled.