Switching on the chronometer of history : communism, postcommunism and heritage

The destruction of monuments accompanying the fall of Communism ignited debates about preservation of manifestations of a hated regime. While heritage professionals called for their preservation as ‘historical documents’, many monuments were destroyed or removed. Yampolsky sees anti-Communist iconoclasm as a rejection of the totalitarianism of time embodied in Communist monuments. These ‘intentional monuments’ were intended to ‘negate the march of time and oppose to it the permanence of human action’. They demonstrated the alleged end of history in a classless utopia.

Iconoclastic acts against these monuments involved the crossing of ‘the invisible boundaries of the sacral zone surrounding monuments, switching on the chronometer of history’. In doing so, iconoclasts provide the conditions for reassertion of heritage practices: heritage requires a sense of the flow of time, a difference between past, present and future.

Having restarted the chronometer of history, a society is forced to assess where it stands in relation to its past. Will it continue on a path of ‘wilful forgetting’, or seek to confront the past? The danger of wilful forgetting is the creation of nostalgia. Alternatively, preservation of places of memory helps processing of the past required for movement into the future. ‘One need only consider the way in which Berliners tore down the hated Berlin Wall in the aftermath of 1989’, Fulbrook writes, ‘to understand the desire to rid the landscape of a hated excrescence, a symbol of a rejected political past. But…for those who come after, the effort of historical imagination is all the greater for lack of a topography of experience’.

Heritage preservation can produce a ‘topography of experience’, through which the experience of Communism is examined. Reassertion of a humanistic historical time through heritage practices reveals the arrogant futility of utopian projects seeking to bring history to an end.

Razing Red Square

Razing Red Square is novel set in Moscow and Leningrad during the Glasnost period just prior to the fall of the Berlin wall. It analyses paradigm shifts in world politics. This novel according to the accompanying exegesis is able, albeit fictionally, to document this time faithfully and poignantly.

Souvenirs of the senses

Validated model and study of a rammed earth wall building

A 2100 m² (GFA) two-storey rammed earth building was built on the Thurgoona campus of Charles Sturt University in 1999. The building is novel both in the use of materials and equipment for heating and cooling. The climate at Wodonga can be characterised as hot and dry, so the challenge of providing comfortable working conditions with minimal energy consumption is considerable. This paper describes a thermal model of one of the second-storey offices on the west-end of the building. The simulation software, TRNSYS, has been used to predict office temperatures and comparisons are made between these and measurements made over a typical week in summer. Reasonable agreement has been achieved under most conditions. The model has been used to investigate key building parameters and strategies, including night flushing, to improve the thermal comfort in the office.

Study of heat flow through a rammed earth wall building

In 1999, a 2100 m2 (GFA) two-storey rammed earth building was built on the Thurgoona campus of Charles Sturt University. The climate at Thurgoona is considered Mediterranean – hot dry summers and cool winters. The internal and external walls of the building are constructed from 300-mm thick rammed earth (pise) and are load bearing. The thermal performance of the building has been investigated, both experimentally and theoretically over the summer and winter seasons of 2000/1. As part of these investigations heat flux sensors and thermistors were embedded in one of the external walls of a ground floor office, and data from the transducers has been used to determine the heat flow at the internal and external wall surfaces. The simulation software, TRNSYS, has been used to model the thermal performance of the same office. The programme allows the user to calculate the heat flow at the walls, which define any particular thermal zone. A comparison of measured and predicted values of heat flows and air temperatures has been used to validate the model. The model has then been used to simulate the effect of shading and added insulation on the thermal performance of the external walls in both summer and winter and these results are also presented in this paper.

Being made redundant: from 'the writing on the wall' to 'a bolt from the blue' - 'being disposed of' as a human tragedy

This paper focuses on the experience of being made redundant. A qualitative study conducted in Australia involved phenomenological, in-depth interviews with middle- and senior-level executives. Ten respondents were interviewed about their experiences of being made redundant. What is evident from their stories is a clear passage of "being disposed of" differing only in whether their fate was evident prior to their disposal - "the writing on the wall" - or whether it was a complete shock - "a bolt from the blue". Ultimately, whether respondents knew what was coming or not, the process was often shocking, hurtful, humiliating, and harsh. Many respondents reported going through the process of being made redundant more than once. All believed it could have been handled better.

Carbon nanotubes formed in graphite after mechanical grinding and thermal annealing

Multi-walled carbon nanotubes with cylindrical and bamboo-type structures are produced in a graphite sample after mechanical milling at ambient temperature and subsequent thermal annealing up to 1400 °C. The ball milling produces a precursor structure and the thermal annealing activates the nanotube growth. Different nanotubular structures indicate different formation mechanisms: multi-wall cylindrical carbon nanotubes are probably formed upon micropores and the bamboo tubes are produced because of the metal catalysts. A two-dimensional growth governed by surface diffusion is believed to be one important factor for the nanotube growth. A potential industrial production method is demonstrated with advantages of large production quantity and low cost.

The influence of geometry and wall character of pores on the permeation of ions and water through desalination membranes

The transport of water and ions across mimicked nanotube membranes with pseudo atoms is studied using molecular dynamics simulations under equilibrium conditions and hydrostatic pressure. Different pore surface properties are constructed by assigning partial charges on the sites of specified atoms to explore the influence of charges and polarity. The energetics of water and ion transports through the nanopores was calculated to evaluate their filterability to water. The simulation results show that the free energy barriers to water and ion conductions much depend on the charges at the pore entrance and the dipole within the pore. The membranes with hydrophobic pores and negatively charged entrances would be very efficient in the water transport and ion rejection. The charges and dipoles of the pore wall and the aligned dipoles of water molecules in the pore can create a significant force on ions.