Newton also developed the reflecting telescope.

Despite the theoretical advantages of the reflector design, the difficulty of construction and the poor performance of the speculum metal mirrors being used at the time meant it took over 100 years for them to become popular.

In astronomy, reflection nebulae are clouds of interstellar dust which reflect the light of a nearby star or stars.

The parabolic reflector transforms an incoming plane wave traveling along the axis into a spherical wave converging toward the focus.

But she had brought them up to the roof, and hid them with the stalks of flax, which she had laid in order on the roof.

But she had brought them up to the roof of the house, and hid them with the stalks of flax, which she had laid in order upon the roof.

And then you go a little crazy, and so you do various optical components or you do microprism arrays, like the reflective tape that you have on your running shoes.

It's got a needle, like a record needle, that goes back and forth over the surface, bumps up and down, and feels the height of the first surface.

Snow accumulation on the upper surface and melting from the lower surface are also important to the mass balance of an ice shelf.

Only the heat is extracted at the surface, and everything else that is brought up to the surface is re injected again, eliminating waste.

Single surface products. Furniture's a good one.

50 remained on the roof.

The wing was at a dihedral angle.

So, I let my feet out, and I started floating to the top.

So as you move vertically away from this surface, the heat falls off.

You can look with a microscope and see them on a surface.

On the surface, such thinking may seem reasonable.

Finally, surface temperature is used.

The refractive index of the medium near the surface changes when biomolecules attach to the surface, and the SPR angle varies as a function of this change.

How you grow legs out of a surface.

The form of the cooled surface often is a so called cold finger.

The individual polygons are then fused into the desired surface.

In 1804, Sir John Leslie observed that a matte black surface radiates heat more effectively than a polished surface, suggesting the importance of black body radiation.

Beneath the surface are many threatening cracks.

On the face of it, democratic self defense seems a legitimate goal.

On the surface, much about those two wars seem similar.

But, beneath the surface, clear differences in strategy will emerge.

In 2006, Oman had 10 surface combat vessels.

Before they had laid down, she came up to them on the roof

Let him who is on the housetop not go down to take out things that are in his house.

And before they were laid down, she came up unto them upon the roof

Let him which is on the housetop not come down to take any thing out of his house

And we try to guess what they're doing from their behavior on the surface.

It could be on your roof, or in your backyard, or somewhere else.

We live in a society that emphasizes the surface, not the substance of the human being.

Similar to surface tension, adsorption is a consequence of surface energy.

The helicoid and the catenoid are parts of a family of helicoid catenoid minimal surfaces.

Humidity is the amount of water vapor in the air.

It was a monoplane, with a wingspan of 45 centimetres.

The microorganisms present in the water remain on the filter surface.

Surface litter is generally not included as part of soil organic matter.

The surface ships are mostly small, relying on agility and flexibility.

An exception is floating leaves where most or all stomata are on the upper surface.

This can be at the surface or at the bottom.

It is better to dwell in the corner of the housetop, than to share a house with a contentious woman.