Gram-positive bacteria show blue or purple after Gram-staining in a laboratory test. They have thick cell walls. Gram-negative bacteria show pink or red on staining and have thin walls.

Don't let a stain linger for too long, or else it can penetrate the fibers deeper, making it harder to remove. Always aim to pre-treat a stain before throwing it in the washer to guarantee better ...

Tomato sauce, coffee, engine oil – hands up if you’ve ever had a piece of clothing ruined by a tricky stain like one of these. It may not always work, but knowing how best to tackle specific ...

Chang described the despicable acts of violence against these women and girls as “a stain on our national character.” He said, “They are not only criminal violations, but moral ones ...

“How they get the stain out, both of the Democrats who covered this, who refused to acknowledge this, and, just as bad, if not worse, the members of the media who refused. I don’t know how ...

All that use means wear and tear, and you’ve probably run into the universal frustration of stains, especially if your enameled interior is white. And not just any stains–those deeply embedded ...

MLB commissioner Rob Manfred’s pace of play rules have been a nearly unqualified success, the World Baseball Classic has become must-see theater under his watch and he’s making real progress ...

“This is really going to be such a stain on the admin if this is true,” she added. “And I say that as someone who would take a bullet for Trump. I’m so disappointed.” Loomer also had ...

In the same post, she added: “This is really going to be such a stain on the admin if this is true.” Loomer, who has previously posted online that the September 11 terrorist attacks were an ...

Shark Clean's cleaning gurus have shared a top tip for tackling sweat stains: "make a paste from bicarbonate of soda and water". This straightforward concoction is surprisingly effective at ...