Monday, August 24, 2026
Refrigerator runs on Salt & water!
Three teenage students in India began working on a problem that affects hospitals far beyond their own classroom.
They wanted to find a way to keep vaccines and medicine cold in places where electricity is unreliable or unavailable.
A normal refrigerator needs power, a generator needs fuel and batteries eventually run out.
The students created a device called Thermavault, an electricity-free cooling system designed for remote clinics and communities.
The refrigerator uses the cooling effect created when certain salts dissolve in water.
That chemical process absorbs heat, causing the temperature inside the container to drop without requiring an electrical outlet or compressor.
The team designed the system to be portable, reusable and affordable for medical facilities that cannot depend on a continuous power supply.
Their project received support through The Earth Prize competition, allowing them to improve the design and move closer to real-world use.
They also planned to build hundreds of units for hospitals and health centers in underserved regions.
A vaccine may look like a small glass vial, but it must remain within a safe temperature range from the moment it is produced until the moment it is given to a patient.
If that cold chain fails, the medicine can become unusable.
Three students looked at this enormous global challenge and created an answer using salt, water, science and the belief that lifesaving technology should work even where electricity does not
Diplomat has to face SIR!
Retired diplomat Navdeep Suri, who represented India as ambassador to the UAE and Egypt and as High Commissioner to Australia, has found himself having to prove his Indian citizenship during the ongoing voter roll verification in Punjab.
Suri said he submitted his voter ID and Aadhaar card to the Booth Level Officer and was initially told that everything was in order. He later received a message saying that some of his details did not match the records from 2003. Since he was posted abroad that year, he was reportedly asked to provide his passport as additional proof
The former diplomat, who retired in 2019 after representing India in three countries, questioned the situation on social media, asking what happens to an ordinary citizen if someone with his background can face difficulties proving his citizenship.
The issue has also raised questions about which documents are accepted as conclusive proof of citizenship. India Today noted that Aadhaar establishes identity and residence but not citizenship, while a passport, although normally issued after verification, is also not by itself considered conclusive proof of citizenship.
The incident comes during the Special Intensive Revision of electoral rolls in Punjab, where voters are being asked to verify their details. The episode has now sparked a wider discussion about documentation, citizenship and the difficulties ordinary citizens may face during such verification exercises.
Sunday, August 23, 2026
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