Possible wavelengths for a hot Dyson Sphere to be detected in different black hole mass. The purple, blue, green, orange, and red regions indicate X-ray(0.01 ? 10 nm), UV(10 ? 400 nm), optical(400 ?

This is a preview. Log in through your library . Abstract Relaxation methods are outlined, and the present problem formulated in modified spherical polar co-ordinates. The results of calculations made ...

An expermental and theoretical study has been made of the aerodynamic drag torque on a sphere rotating in a rarefied gas. The drag torque on a magnetically suspended polished steel sphere rotating in ...

For nearly a century, scientists have been scratching their heads and reworking theories about a seemingly ho-hum problem: How does nature organize electrons, cells or other particles onto the surface ...

The gargantuan artificial construct enveloping your local star is going to be rather difficult to miss, even from a few light years away. And given the literally astronomical costs of resources needed ...

Wrapping an image around an object in Photoshop emphasizes the apparent three-dimensionality of the wrapped object, which can make your compositions more engaging. For example, wrapping text around a ...