Sentences with phrase «central hole»

Using a small one inch cutter (I used a bottle top), cut the central hole out of the circle, to make a ring.

They found that the star was circled by a ring of gas with a central hole that was probably created by an unseen planet or companion star.

As a fish swims through the central hole, it disappears while the pondweed behind the cloak remains perfectly visible.

When light from an external source is shown onto the surface of an interferometer, some of the photons go through the central hole, while others are scattered by the grooves.

One goal of her research is to supersede the limitations of today's conventional, doughnut - shaped tokamaks, which consist of a magnetic coil, or solenoid, resting within a central hole.

In 2008, for the Large Synoptic Survey Telescope, he cast a doughnut - shaped 8.4 - metre mirror with a 5 - metre mirror in the central hole.

In 2008, for the Large Synoptic Survey Telescope, he cast a doughnut - shaped 8.4 - meter mirror with a 5 - meter mirror in the central hole.

The central hole in the beam is due to the secondary mirror obscuration on the laser beam launch telescope and is used to align the laser beam.

Some of the dust inside Centaurus A maps out what appears to be a barred spiral galaxy, which has recently merged with its giant elliptical host and is feeding gas into the host's central hole to produce bi-polar jets that are bright in radio wavelengths (more from APOD and ESA).

Stella's ingenious solution was to cut away the leftover parts of the canvas, and to stretch the remainder on a shaped armature, with corners incised or a central hole evacuated.

In the «Pieno di Vuoto» series, (which loosely translates as «full of emptiness»), circular pieces of hanji paper, painted in bright colours and burnt to create a central hole, are applied in an overlapping fashion.

Made from hardwood this stand has several wooden pegs to hang coats, hats and scarves, as well as a central hole in which to hang a walking stick or umbrella.