Some 1960s electronic organs used reverse colors or gray sharps or naturals to indicate the lower part ( s ) of a split keyboard: one divided into two parts, each of which produces a different Registration or sound.

This work was extended by Alan Baker in the 1960s in his work on lower bounds for linear forms in any number of logarithms ( of algebraic numbers ).

Infinity's full range electrostatic speaker system that was developed during the 1960s also used a woofer to cover the lower frequency range that its electrostatic arrays did not handle adequately.

Although national rates of unemployment were higher in 1970 than in the early 1960s, unemployment rates in the development areas were lower and had not increased for three years.

In the 1950s, 1960s and 1970s, the FHA helped to spark the production of millions of units of privately-owned apartments for elderly, handicapped and lower income Americans.

By the end of the 1960s there were virtually no isolated power systems remaining in the lower forty-eight states and southern Canada ; practically all power companies were attached to large interconnections.

However by the early 1960s GE was the largest user of IBM mainframes, and producing their own machines seemed like an excellent way to lower the costs of their computing department.

Dahyabhai Patel was a businessman who eventually was elected to serve in the Lok Sabha ( the lower house of the Indian Parliament ) as an MP in the 1960s.

Journalists in the 1960s used " Orpington man " to designate a typical member of the lower middle class, for example as the target audience of an electoral or advertising appeal.

The original lower single chairlift was replaced in the 1960s and the loading base was moved across the river ; a footbridge provides walking access from the parking lot to the River Run base area.

The neighborhood is mostly full of middle-class families, and most of it in the lower area was built in the 1960s and 1970s.

Deserved or not, it had a somewhat odious reputation among the local population as it was a lower middle class, blue collar, low-rent housing district during the 1960s and ' 70s up to the mid-1980s.

During the late 1960s and early 1970s increasing numbers of Houstonians, attracted by the beautifully wooded site, its accessibility, and lower tax and insurance rates, began taking up residence in Oak Ridge North.

For example, the rubber bullets developed during the 1960s were supposed to be fired at the ground and hit the target only after ricochet, and other non-lethal bullets are designed to be fired at the lower body ; they can be lethal if fired directly at the head, as commonly happens.

The band had its roots in the folk music scene based in the Greenwich Village section of lower Manhattan during the early 1960s.

Although similar to the three 1960s " cathedral stations " of Line A, their passenger traffic has so far proved vastly lower.

With declining interest in thorium as a potential nuclear fuel in the 1960s and increased concern over the disposal of the radioactive daughter products of thorium, bastnäsite came to displace monazite in the production of lanthanides due to its much lower thorium content.

The lower reaches of the creek were filled in from the 1960s onwards and it is now a recreation ground and home to the Stonehouse Creek Social Club and home to Devonport High School Old Boys RFC.

The print shop where his father worked was on Stone Street in lower Manhattan, and Libeskind watched the original World Trade Center being built in the 1960s.

Although this has changed dramatically since the advent of funding for francophone high schools in the 1960s, according to the 2001 census, francophones in Ontario still tend to have a lower level of education than the general population.

A notable example was the Sunbeam T-20, T-35 and T-50 models ( identical except for details such as control positioning ) made from the late 1940s through the 1960s, which used the mechanically multiplied thermal expansion of the resistance wire in the center element assembly to lower the bread ; the inserted slice of bread tripped a lever to switch on the power which immediately caused the heating element to begin expanding thus lowering the bread.

It became prominent once again as one of the centres of 1960s " Swinging London ", when house prices were lower than in the staid Royal Borough of Kensington.

This standard was popularized by ( if not created by ) Bob Moog in the 1960s ; it was widely adopted for control interfacing. One volt represents one octave, so the pitch produced by a voltage of 3 V would be one octave lower than that produced by a voltage of 4 V. Notable followers of this standard include Roland, Moog, Sequential Circuits, Oberheim and ARP.

By the late 1960s, the high salinity of the water crossing into Mexico had resulted in the ruin of large tracts of the irrigated land along the lower Colorado.

During the late 1960s and ' 70s, abandoned and inexpensive Tribeca lofts became hot-spot residences for young artists and their families because of the seclusion of lower Manhattan and the vast living space.

Ewan MacColl's " Sweet Thames, Flow Softly ", written in the early 1960s, is a tragic love ballad set on trip up the river.

With the decline in the coal mining industry, the quality of the river improved in the 1960s and 1970s so that some salmon and sea-trout started to return to the river to spawn.

Dredging in the 1960s mostly eliminated tidal bores on the river, known as “ le mascaret .”

Some of the Northern river reversal proposals, widely discussed in the 1960s and 1970s, would have seen the direction of flow of the Irtysh reversed so as to supply water to central Kazakhstan and Uzbekistan.

The Haven Bridge, which now carries the two trunk roads over the river, was opened in 1966, and the new road built in the early 1970s rather separated Skirbeck from Boston ; but the town largely avoided the development boom of the 1960s.

The steeply-sloping fields adjoining the river between Bowlish and the rest of the Shepton Mallet are known locally as The Meadows, to the east of which is Hillmead, a council housing estate built in the 1960s.

In the 1950s and 1960s, dams were built along the river ending this river traffic on Spanish and border sections.

Construction of a new four-lane bridge across the Raritan River ( now the John A. Lynch Memorial Bridge ) began in the 1960s, but in 1970, when the environment impact laws came out, construction froze with only three massive piers standing out of the river.

They suffered severe damage in World War II bombing and became redundant in the 1960s following the collapse of the river trade.

The river was dammed in the 1960s and Tuttle Creek Lake was created as a result.

The town escaped the Beeching Axe of the 1960s and maintained its rail link with London, although many villages further up the river lost their railway stations.

An impressive day lodge, constructed of logs, river rock, and glass, opened at the base of Warm Springs in the fall of 1992, replacing the 1960s " Northface Hut " cafeteria.

* Panbowl Lake was once part of the North Fork of the Kentucky River, but in the late 1950s and early 1960s the river was re-routed by way of a small cut-through through the mountain.

It was the location of a resort from the 1930s to the early 1960s, near where U. S. 277 crosses the river.

Efforts to clean up the river and restore it to a state where swimming and fishing would be acceptable began as early as the 1960s, and the program to clean up the Charles for good took shape in 1965 with the creation of the Charles River Watershed Association.

The Aller was extensively straightened, widened and, in places, dyked, during the 1960s to provide flood control of the river.

Just above Barton Mills, a side weir connects the river to the start of the Cut-off Channel, a 25-mile ( 40 km ) drain running from there to Denver along the south-eastern edge of the Fens, which was constructed in the 1950s and 1960s.

The stretch of river below and above the aqueduct, where it is joined by Midford Brook, is used by the Bluefriars of the Monkton Combe School Boat Club up to six days a week since at least the 1960s.

However, in the 1950s and 1960s, several hydroelectric power dams were built along the river, ending this traditional conveyance down the river.

Since the 1960s, the locks have been repaired to enable pleasure craft to travel the entire navigable length of the river.

There are several areas along the river Isar that have been designated since the 1960s as nudist resorts.