Why you'see' things in the dark, according to an ophthalmologist Science explains why we see flickers of light and patterns in the darkness. Our eyes sometimes really do play tricks on us at night. Breakthroughs, discoveries, and DIY tips sent every weekday. In 1999, Daniel Myrick and Eduardo Sánchez shot one of the definitive horror films of the era on a budget of roughly $60,000. is a study in omission, in the conspicuous absence of the visual effects characteristic to the genre. In lieu of baroque prosthetic gore and over-the-top CGI effects, the movie leans into silence and darkness for much of its 81-minute run time.

The shape of multicoloured three-dimensional puzzle Rubik's Cube is not a trademark, the European Court of Justice has ruled. It means the shape of the cube alone is not enough to protect it from being copied. UK company Seven Towns, which manages Rubik's Cube's intellectual property rights, registered its shape as a trademark in in the 1990s. But German firm Simba Toys challenged the trademark protection in 2006. The European Court of Justice (ECJ) agreed that the cube's ability to rotate should be protected by a patent and not a trademark.