41.   The blue diode laser technology is particularly useful in building a new generation of high density optical storage devices that are both writable and readable.

42.   There has been no formal carp population count, and some researchers said they suspected that the carp population had reached a critically high density.

43.   There should be a high density of stars in any given direction, and their combined light should make the night sky much brighter than it is.

44.   They love the growing energy of this neighborhood, and the high density makes transit practical.

45.   To improve productivity, he has switched to a new breed of smaller trees that can be packed into small orchards at very high density.

46.   What the formerly warring consortiums of Toshiba-Time Warner and Sony-Philips have agreed on is the basic technology, commonly referred to as high density.

47.   With the high densities, civic leaders can concentrate housing in certain areas of downtown to create a natural customer base for neighborhood merchants.

48.   Danin identified a high density of pollen of the tumbleweed Gundelia tournefortii.

49.   Flu epidemics are common in industrial areas with a high density of population every winter.

50.   For many, the need to even justify the existence of green space in built-up areas, especially where there is high density, is bewildering.