Supervised by Dr. Carlo Makdisi, Eng. Ziad Hammoud and Amjad Hassan, who are students at the Faculty of Mechanical and Electrical Engineering in Tishreen University in Lattakia Governorate, design an advanced ultrasonic device for the blind as to help them overcome obstacles.

The device was presented for the first time at the” Applied Projects Exhibition”, which has been  recently held at the Faculty of Mechanical and Electrical Engineering in Tishreen University in Lattakia.

Whether it's due to popular teen films such as Mean Girls or gender stereotypes most people imagine girls form more cliques than boys.

Yet a new study contradicts this, suggesting that boys are more likely to form tight-knit friendship groups, according to BBC.

Researchers say analysing social mixing patterns is important for infectious diseases and vaccination planning.

They found that boys were more likely to mix with the same six friends over a period of six months.

Findings study provide further evidence that the outskirts of spiral galaxies host massive black holes. These overlooked regions are new places to observe gravitational waves created when the massive bodies collide, the authors report.

The study winds back time on massive black holes by analyzing their visible precursors -- supernovae with collapsing cores. The slow decay of these massive stars creates bright signatures in the electromagnetic spectrum before stellar evolution ends in black holes, according to Science Daily.

 A new study is challenging the idea that black holes are surrounded by ring of fire that incinerates anything in their path, according to Daily Mail.

According to new calculations, black holes may act more like balls of string, meaning they accumulate more and more ‘fuzz’ as objects are pulled in.

The scientists say this means the fuzzy surface would extend to meet the object well before it reaches the hottest part of the black hole.

When carbon dioxide is absorbed by seawater carbonic acid is formed, making the water more acidic. Oceanic CO2 has risen by 43% and is predicted to be two and a half times current levels by the end of this century, according to Science Daily.

Fish use their sense of smell (olfaction) to find food, safe habitats, avoid predators, recognize each other and find suitable spawning grounds. A reduction in their ability to smell therefore can compromise these essential functions for their survival.

The new study provides evidence that economically important species will be affected by elevated CO2, leaving fish vulnerable because it affects their ability to detect odours.