Friday, 1 February 2019

Warning: HSA raises alert on Deeja, RDL cosmetic creams containing mercury

The Deeja Cosmetic box set (left) and the RDL Face Off Fade-Out Cream Day Cream 5 in 1. (Photos: Health Sciences Authority)

The Health Sciences Authority (HSA) on Thursday (Jan 31) warned the public not to buy or use four cosmetic creams found to contain mercury, a toxic metal.

One of the products, Deeja Cosmetic Wrinkle cream, was found to contain mercury levels exceeding the permissible limits by more than 40,000 times.

The other three products are: Deeja Cosmetic Sun cream, RDL Babyface Whitening Cream Night Cream 5 in 1 and RDL Face Off Fade-Out Cream Day Cream 5 in 1.

Regular application of creams containing mercury could lead to rash, skin discolouration and blotching. Long-term exposure to high levels of mercury in cosmetic products can cause serious health consequences including damage to the kidneys, digestive and nervous systems.

Read more @

video: How to put on a screen protector easily

Scientists from MIT have discovered a way to convert Wi-Fi signals into electricity

Scientists from MIT have discovered a way to convert Wi-Fi signals into electricity. This involves the use of an existing device called a rectenna. It’s a device that converts “AC electromagnetic waves into DC electricity.”

The MIT researchers demonstrated a new kind of rectenna, which uses a “a flexible radio-frequency (RF) antenna that captures electromagnetic waves, including those carrying Wi-Fi, as AC (alternating current) waveforms.” The AC signal is converted by the semiconductor device into a direct current voltage. This output could be potentially harness to power electronic circuits or charge power cells.

The key application of this discovery is the possibility of doing away with stored-power cells, and the use of Wi-Fi signals to power devices. What this means is that potential hazardous rechargeable batteries may be history for smart devices.


Video: Riding the MRT at 5 - Are Singaporean pre-schoolers more independent than we think they can be?

While helicopter parenting may be resulting from Singapore families choosing to have fewer kids, mum Serena Ong and dad Kai Keong are challenging their 5-year-old son, Nathanael, to be more independent. He is tasked to take his dad’s laptop from their home in Simei to dad’s office in Marina One all by himself.

Wolbachia mosquito project expanded to larger area

More than 140 blocks of Housing Board flats in Nee Soon East and Tampines West will be participating in the next phase of a study by the National Environment Agency (NEA) to reduce the Aedes mosquito population and fight dengue.

Male Wolbachia-Aedes mosquitoes, which have been infected with the Wolbachia bacterium, will be released into the expanded test sites at the two estates in phase three of the Project Wolbachia.

When they mate with female Aedes mosquitoes, the eggs the females lay will not hatch, said NEA.

The expansion in study sites follows the success of phase two of the study, which was conducted between April 2018 and January 2019, at smaller areas in Nee Soon East and Tampines West.

Read more @