Credit: Aalto Universi
The uncertainty principle, first introduced by Werner Heisenberg in the late 1920 s, is a fundamental concept of quantum mechanics. In the quantum world, particles like the electrons that power all electrical product can also behave like waves. As a result, particles cannot have a well-defined position and momentum simultaneously. For instance, measuring the momentum of a particle leads to a disturbance of position, and therefore the position cannot be precisely defined.
In recent research, published in
Science, a team led by Prof. Mika Sillanpää at Aalto University in Finland has shown that there is a way to get around the uncertainty principle. The team included Dr. Matt Woolley from the University of New South Wales in Australia, who developed the theoretical model for the experiment.
Jason Scott, Bloomberg News
(Bloomberg)
For Australiaâs Prime Minister Scott Morrison, Tuesdayâs annual budget canât come soon enough as he tries to put a torrid opening to the year behind him and focus voter attention on the strength of the economic recovery.
After having his political judgment questioned, Morrison will attempt to reset the narrative by highlighting his economic stewardship through the pandemic. Heâs likely to receive a budget boost as economists see the deficit for the 12 months through June at A$152 billion ($118 billion), about 25% less than Treasuryâs December estimate, and unemployment falling to 4.5% in two years.
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05/06/2021 08:31 AM EDT
Welcome, China Watchers. This week’s guest host is Geoffrey Garrett, dean of the University of Southern California Marshall School of Business and distinguished international political economist. He has previously served as the dean of the Wharton School at the University of Pennsylvania and the business schools at the University of Sydney and University of New South Wales in Australia. Garrett is also a past president of the Pacific Council on International Policy, member of the Council on Foreign Relations and a winner of the Foreign Policy Association Medal. Over to you, Geoffrey. John Yea
Do terrestrial geomagnetic field reversals have an effect on Earth s climate? Cooper et al.created a precisely dated radiocarbon record around the time of the Laschamps geomagnetic reversal about 41,000 years ago from the rings of New Zealand swamp kauri trees. This record reveals a substantial increase in the carbon-14 content of the atmosphere culminating during the period of weakening magnetic field strength preceding the polarity switch. The authors modeled the consequences of this event and concluded that the geomagnetic field minimum caused substantial changes in atmospheric ozone concentration that drove synchronous global climate and environmental shifts.
Geological archives record multiple reversals of Earth’s magnetic poles, but the global impacts of these events, if any, remain unclear. Uncertain radiocarbon calibration has limited investigation of the potential effects of the last major magnetic inversion, known as the Laschamps Excursion
The number of Covid-19 check-ins at venues across New South Wales has declined by more than 25% in the space of three months, new data reveals. Since the start of the year, hospitality and hairdressing businesses have been required to use the Service NSW app to register people’s details at the time they visit, using a QR code to check in on their phone. Despite venue check-ins becoming part and parcel of Covid-normal life in Australia,.