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.

He hesitated before answering.

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.

LC circuits are used either for generating signals at a particular frequency, or picking out a signal at a particular frequency from a more complex signal.

Acoustic resonance is the tendency of an acoustic system to amplify a frequency that matches one of its own natural frequencies of vibration (its resonance frequencies ).

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.

The original black and white standard, with its 15750 Hz line frequency and 4.5 MHz audio subcarrier, does not meet these requirements, so designers had either to raise the audio subcarrier frequency or lower the line frequency.

Similar dithering is apparent at the geopolitical level as well.

After hesitating, Zardari arrived in London three days later.

The frequency is usually in the range 1 to 10 kHz.

This carrier wave is usually a much higher frequency than the input signal.

So the engineers chose the line frequency to be changed for the color standard.

Seeing that the Angel was an Eva, the pilots hesitated.

So, there're lots of things. Everything has RF tags there's RF tags on the user, on the cards, there's the staff devices that are all around the store.

Lowering the line frequency is comparatively innocuous, because the horizontal and vertical synchronization information in the NTSC signal allows a receiver to tolerate a substantial amount of variation in the line frequency.

What do you suggest? Ghassan attempted to speak as smoothly as he could muster.

There is also a hesitation in some rural areas to sending girls to school.

Radio frequency (RF) is a rate of oscillation in the range of around to , which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals.

Any hesitation could have profound and irreparable consequences for him.

Newton had been reluctant to publish his calculus because he feared controversy and criticism.

and to those who were in Hebron, and to all the places where David himself and his men used to stay.

And to them which were in Hebron, and to all the places where David himself and his men were wont to haunt.

And I have to explain to you, the top of this graph shows you that frequency distribution that I talked about.

It would be all atoms pulsating in unison, emitting light of one color, one frequency.

With governments hesitating to do their part, the ECB is reluctant to support them.

There can be no hesitation, and we cannot relent in our efforts.

The script was one of the best he had read, and he unhesitatingly took the part.

These regimes can only read the West s dithering as a green light for their cynical agendas.

Other cities are witnessing protests as well, all echoing the same call Putin must go.

The Swarovski Group also includes Tyrolit (makers of abrasive and cutting tools) Swareflex (reflective and luminous road markings) Signity (synthetic and natural gemstones) and Swarovski Optik (optical instruments such as binoculars and rifle scopes).

Wouln't if be nice if they come forward with their opinion on Adam's bridge? Wouldn't it be nice if they explain what science has to say about its formation?

Moreover, a human being s reticence to kill is inversely related to the distance between attacker and target.

The Americans (after initial reluctance) had to do the dirty work.

Sadly, this kind of news is not unfamiliar in Mexico, especially after the two San Fernando massacres.

Do you think your father loved you? he asks. The younger man pauses, and the older one answers for him.

Manifesting in a wide frequency range, speech is quite resistant to many types of masking frequency cut off Moore reports, for example, that a band of frequencies from 1000 Hz to 2000 Hz is sufficient (sentence articulation score of about 90 ).

In Oxford, perhaps we can use Lewis Carroll and look in the looking glass that is New York City to try and see our true selves, or perhaps pass through to another world.

At the same time, though, there is no hesitation about waging a tough defensive war against Palestinian terrorism.

Many people have suddenly become very hesitant about using the term multicultural society.

A wall was transformed into a mural echoing the call of human rights groups to stop the militarization of Lumad schools.

Maintaining everything else constant, increasing the clock frequency decreases the average time it takes to execute an instruction.

At 16 38 hrs, the captain was requested a change to tower frequency and this was acknowledged.

Headache was the only reported side effect to occur at a frequency greater than 5 percentage points above those from placebo.