Tag: Gadget News

India’s journey toward human space exploration marked a critical step with the dispatch of the Crew Module for the first uncrewed mission under the Gaganyaan project. The module, integrated with a liquid propulsion system at the Liquid Propulsion Systems Centre (LPSC) in Bengaluru, has been sent to the Satish Dhawan Space Centre in Sriharikota. This development, achieved on 21 January 2025, is part of India’s efforts to attain human spaceflight capabilities.

Liquid Propulsion System Details

As reported by the Economic Times, according to ISRO, the Crew Module Propulsion System (CMPS) incorporates a bi-propellant Reaction Control System (RCS). This system is essential for precise three-axis control—pitch, yaw, and roll—during the descent and re-entry phases. Control operations will commence after the separation of the service module and continue until the parachute-based deceleration system is deployed. The propulsion system includes 12 thrusters, each delivering 100 Newtons of thrust, along with high-pressure gas bottles, a propellant feed mechanism, and associated fluid control components.

Assembly and Integration

The module’s development also involved the integration of the Crew Module Uprighting System (CMUS), designed by the Vikram Sarabhai Space Centre (VSSC). The module will now undergo further assembly processes, including avionics installation, electrical harnessing, and a series of checks at VSSC before its dispatch to the U R Rao Satellite Centre in Bengaluru. The final phase will focus on integrating the Crew Module with the Orbital Module.

ISRO has emphasised that the uncrewed G1 mission is a preparatory step for sending humans to space, enabling the validation of systems and technologies critical to the Gaganyaan project. With this milestone, India edges closer to joining the league of nations with human spaceflight capabilities.

China’s Experimental Advanced Superconducting Tokamak (EAST), referred to as the “artificial sun,” has achieved a new milestone in nuclear fusion research. The reactor maintained a continuous loop of plasma for 1,066 seconds, surpassing its previous record of 403 seconds. This breakthrough, reported on January 20, 2025, represents a significant step towards realising nuclear fusion as a near-limitless clean energy source. The achievement highlights advancements in sustaining plasma, a high-energy state of matter crucial for fusion reactions.

EAST’s Latest Milestone

As reported by Live Science, according to Chinese state media, EAST operates as a magnetic confinement reactor designed to sustain plasma for extended periods. The recent success was made possible by upgrades to the reactor, including an enhanced heating system with double the power. Song Yuntao, Director of the Institute of Plasma Physics at the Chinese Academy of Sciences, described the experiment as critical for future fusion power plants. Speaking to Chinese media, he emphasised the need for stable plasma operation over thousands of seconds to achieve continuous power generation.

Understanding Fusion Reactors

Nuclear fusion mimics the sun by fusing light atoms under intense heat and pressure to form heavier ones, releasing energy in the process. Unlike the sun, where immense pressure aids the reaction, Earth-based reactors rely on extremely high temperatures. Despite the promise of abundant and clean energy, fusion reactors currently consume more energy than they produce.

Global Efforts in Fusion Technology

China is a participant in the International Thermonuclear Experimental Reactor (ITER) program, a multinational initiative aimed at advancing fusion research. ITER, located in France, is expected to begin operations in 2039 and will test sustained fusion. Data from EAST’s experiments will support ITER and other global projects.

The milestone achieved by EAST marks progress in fusion technology, though decades of research remain before its application in power generation becomes feasible.

A paralysed individual, aged 69, has successfully piloted a virtual drone using a brain-computer interface (BCI) that interprets neural signals. This innovative achievement has enabled the participant to navigate a video-game obstacle course by imagining specific finger movements. The breakthrough device, which bridges brain activity and real-time control, demonstrates potential applications for assisting those with mobility challenges to engage in intricate tasks. These developments mark significant progress in the application of BCIs for enhancing motor functions.

Breakthrough Detailed in Nature Medicine

According to a study published in Nature Medicine, the man, who had been paralysed in all four limbs following a spinal cord injury, controlled the virtual drone using neural signals linked to imagined movements of specific finger groups. The research relied on electrodes implanted in the participant’s left motor cortex, which had been placed during a prior operation in 2016. Algorithms were trained to decode the brain’s signals when he visualised moving his right thumb, different finger pairs, or combinations of them.

The researchers reported that the participant initially practised synchronising imagined movements with a virtual hand displayed on a screen, achieving a high degree of accuracy by hitting up to 76 targets per minute. Subsequently, the signals were connected to the drone’s navigation system, allowing him to steer it through a virtual basketball court, manoeuvring rings with precision.

Expert Insights on Potential Applications

Matthew Willsey, a neurosurgeon at the University of Michigan and a co-author of the study, told Nature Medicine that the participant likened the experience to playing a musical instrument, requiring delicate adjustments to maintain control. Willsey noted that the research seeks to enable control of multiple movements simultaneously, potentially assisting activities such as typing or playing musical instruments.

John Downey, a BCI researcher from the University of Chicago, described the work as an important initial step in understanding hand control mechanisms. He highlighted the potential of this technology as a versatile tool for individuals with limited mobility. Researchers aim to enhance the system to decode signals for all ten fingers.