Viscosity 1.8.6 [WORK]

Viscosity version 1.8.6 is now available for both macOS and Windows! This update brings a number of small improvements, updated OpenVPN and OpenSSL versions, two-factor authentication enhancements, and small bug fixes.

Viscosity 1.8.6

The addition of lead oxide to glass raises its refractive index and lowers its working temperature and viscosity. The attractive optical properties of lead glass result from the high content of the heavy metal lead. The high atomic number of lead also raises the density of the material, since lead has a very high atomic weight of 207.2, versus 40.08 for calcium. The density of soda glass is 2.4 g/cm3 (1.4 oz/cu in) or below, while typical lead crystal has a density of around 3.1 g/cm3 (1.8 oz/cu in) and high-lead glass can be over 4.0 g/cm3 (2.3 oz/cu in) or even up to 5.9 g/cm3 (3.4 oz/cu in).[1]

The addition of lead oxide to potash glass also reduces its viscosity, rendering it more fluid than ordinary soda glass above softening temperature (about 600 C or 1,112 F), with a working point of 800 C (1,470 F). The viscosity of glass varies radically with temperature, but that of lead glass is roughly two orders of magnitude lower than that of ordinary soda glasses across working temperature ranges (up to 1,100 C or 2,010 F).[7] From the glassmaker's perspective, this results in two practical developments. First, lead glass may be worked at a lower temperature, leading to its use in enamelling, and second, clear vessels may be made without trapped air bubbles with less difficulty than ordinary glasses, allowing the manufacture of perfectly clear, flawless objects.

The PCU is installed directly above a new transaxle that is 15% lighter than before thanks to the use of new materials and which uses new, compact, high-output drive motors. Using low-viscosity oil reduces internal friction and adds to the all-round improvement in efficiency. 041b061a72