A few possibilities that spring to mind, some more practical than others:

• Eraser is in the process of falling at the moment the photo is taken (shutter speed of 1/250 or faster will 'freeze' motion).

• Photo is taken in 0-g or low-g environment e.g. space station, descending aircraft, descending lift.

• Surface tension: water, oil, etc.

• Static electricity.

• Frame of reference is rotating (picture is sideways, camera is spinning with other equipment), Coriolis force is in play. E.g. all equipment is on a wheeled trolley being spun around fast.

• Wind: a fan below the frame of the photo is pushing air upwards; a vacuum cleaner above the frame of the photo is pulling air upwards.

• Black hole outside frame of photo is causing gravity distortion.

• Descriptive text is untrue: picture has been modified, eraser has been modified (e.g. hollowed out at one end to shift centre of gravity, concealed magnet, etc etc).

• Rubber has perished, stuck itself to the paper.

• Glue.

That's before we even get onto the possibilities of parallel universes....

A few possibilities that spring to mind, some more practical than others:

1. Eraser is in the process of falling at the moment the photo is taken (shutter speed of 1/250 or faster will 'freeze' motion).

2. Photo is taken in 0-g or low-g environment e.g. space station, descending aircraft, descending lift.

3. Surface tension: water, oil, etc.

4. Static electricity.

5. Frame of reference is rotating (picture is sideways, camera is spinning with other equipment), Coriolis force is in play. E.g. all equipment is on a wheeled trolley being spun around fast.

6. Wind: a fan below the frame of the photo is pushing air upwards; a vacuum cleaner above the frame of the photo is pulling air upwards.

7. Black hole outside frame of photo is causing gravity distortion.

8. Descriptive text is untrue: picture has been modified, eraser has been modified (e.g. hollowed out at one end to shift centre of gravity, concealed magnet, etc etc).

9. Rubber has perished, stuck itself to the paper.

10. Glue.

That's before we even get onto the possibilities of parallel universes....

A few possibilities that spring to mind, some more practical than others:

• Eraser is in the process of falling at the moment the photo is taken (shutter speed of 1/250 or faster will 'freeze' motion).

• Photo is taken in 0-g or low-g environment e.g. space station, descending aircraft, descending lift.

• Surface tension: water, oil, etc.

• Static electricity.

• Frame of reference is rotating (picture is sideways, camera is spinning with other equipment), Coriolis force is in play. E.g. all equipment is on a wheeled trolley being spun around fast.

• Wind: a fan below the frame of the photo is pushing air upwards; a vacuum cleaner above the frame of the photo is pulling air upwards.

• Black hole outside frame of photo is causing gravity distortion.

• Descriptive text is untrue: picture has been modified, eraser has been modified (e.g. hollowed out at one end to shift centre of gravity, concealed magnet, etc etc).

• Glue.

That's before we even get onto the possibilities of parallel universes....

A few possibilities that spring to mind, some more practical than others:

• Eraser is in the process of falling at the moment the photo is taken (shutter speed of 1/250 or faster will 'freeze' motion).

• Photo is taken in 0-g or low-g environment e.g. space station, descending aircraft, descending lift.

• Surface tension: water, oil, etc.

• Static electricity.

• Frame of reference is rotating (picture is sideways, camera is spinning with other equipment), Coriolis force is in play. E.g. all equipment is on a wheeled trolley being spun around fast.

• Wind: a fan below the frame of the photo is pushing air upwards; a vacuum cleaner above the frame of the photo is pulling air upwards.

• Black hole outside frame of photo is causing gravity distortion.

• Descriptive text is untrue: picture has been modified, eraser has been modified (e.g. hollowed out at one end to shift centre of gravity, concealed magnet, etc etc).

• Rubber has perished, stuck itself to the paper.

• Glue.

That's before we even get onto the possibilities of parallel universes....